diff --git a/renovate.json b/renovate.json
index a5cdff45..268a4669 100644
--- a/renovate.json
+++ b/renovate.json
@@ -22,7 +22,8 @@
         "^com.google.api:gax",
         "^com.google.auth:",
         "^com.google.cloud:google-cloud-core",
-        "^io.grpc:"
+        "^io.grpc:",
+        "^com.google.guava:"
       ],
       "groupName": "core dependencies"
     },
diff --git a/synth.metadata b/synth.metadata
index ab590407..0e903129 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -1,18 +1,19 @@
 {
-  "updateTime": "2020-01-23T21:58:34.134532Z",
+  "updateTime": "2020-01-31T08:51:14.535343Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.44.1",
-        "dockerImage": "googleapis/artman@sha256:5599b61e56a372d21b671969ee915fbca0f6c3a0daaeb898d01f8f685f1bbc8b"
+        "version": "0.44.4",
+        "dockerImage": "googleapis/artman@sha256:19e945954fc960a4bdfee6cb34695898ab21a8cf0bac063ee39b91f00a1faec8"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "c2cdcd2b08ca35c5054268f6277ea04713c88e39"
+        "sha": "7ac66d9be8a7d7de4f13566d8663978c9ee9dcd7",
+        "internalRef": "292450564"
       }
     },
     {
@@ -34,304 +35,5 @@
         "config": "google/iam/credentials/artman_iamcredentials_v1.yaml"
       }
     }
-  ],
-  "newFiles": [
-    {
-      "path": ".github/ISSUE_TEMPLATE/bug_report.md"
-    },
-    {
-      "path": ".github/ISSUE_TEMPLATE/feature_request.md"
-    },
-    {
-      "path": ".github/ISSUE_TEMPLATE/support_request.md"
-    },
-    {
-      "path": ".github/PULL_REQUEST_TEMPLATE.md"
-    },
-    {
-      "path": ".github/release-please.yml"
-    },
-    {
-      "path": ".kokoro/build.bat"
-    },
-    {
-      "path": ".kokoro/build.sh"
-    },
-    {
-      "path": ".kokoro/coerce_logs.sh"
-    },
-    {
-      "path": ".kokoro/common.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/common.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/dependencies.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/integration.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/java11.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/java7.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/java8-osx.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/java8-win.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/java8.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/lint.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/propose_release.cfg"
-    },
-    {
-      "path": ".kokoro/continuous/propose_release.sh"
-    },
-    {
-      "path": ".kokoro/continuous/samples.cfg"
-    },
-    {
-      "path": ".kokoro/dependencies.sh"
-    },
-    {
-      "path": ".kokoro/linkage-monitor.sh"
-    },
-    {
-      "path": ".kokoro/nightly/common.cfg"
-    },
-    {
-      "path": ".kokoro/nightly/dependencies.cfg"
-    },
-    {
-      "path": ".kokoro/nightly/integration.cfg"
-    },
-    {
-      "path": ".kokoro/nightly/java11.cfg"
-    },
-    {
-      "path": ".kokoro/nightly/java7.cfg"
-    },
-    {
-      "path": ".kokoro/nightly/java8-osx.cfg"
-    },
-    {
-      "path": ".kokoro/nightly/java8-win.cfg"
-    },
-    {
-      "path": ".kokoro/nightly/java8.cfg"
-    },
-    {
-      "path": ".kokoro/nightly/lint.cfg"
-    },
-    {
-      "path": ".kokoro/nightly/samples.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/clirr.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/common.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/dependencies.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/integration.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/java11.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/java7.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/java8-osx.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/java8-win.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/java8.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/linkage-monitor.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/lint.cfg"
-    },
-    {
-      "path": ".kokoro/presubmit/samples.cfg"
-    },
-    {
-      "path": ".kokoro/release/bump_snapshot.cfg"
-    },
-    {
-      "path": ".kokoro/release/bump_snapshot.sh"
-    },
-    {
-      "path": ".kokoro/release/common.cfg"
-    },
-    {
-      "path": ".kokoro/release/common.sh"
-    },
-    {
-      "path": ".kokoro/release/drop.cfg"
-    },
-    {
-      "path": ".kokoro/release/drop.sh"
-    },
-    {
-      "path": ".kokoro/release/promote.cfg"
-    },
-    {
-      "path": ".kokoro/release/promote.sh"
-    },
-    {
-      "path": ".kokoro/release/publish_javadoc.cfg"
-    },
-    {
-      "path": ".kokoro/release/publish_javadoc.sh"
-    },
-    {
-      "path": ".kokoro/release/snapshot.cfg"
-    },
-    {
-      "path": ".kokoro/release/snapshot.sh"
-    },
-    {
-      "path": ".kokoro/release/stage.cfg"
-    },
-    {
-      "path": ".kokoro/release/stage.sh"
-    },
-    {
-      "path": ".kokoro/trampoline.sh"
-    },
-    {
-      "path": "CODE_OF_CONDUCT.md"
-    },
-    {
-      "path": "CONTRIBUTING.md"
-    },
-    {
-      "path": "LICENSE"
-    },
-    {
-      "path": "codecov.yaml"
-    },
-    {
-      "path": "google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/IamCredentialsClient.java"
-    },
-    {
-      "path": "google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/IamCredentialsSettings.java"
-    },
-    {
-      "path": "google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/package-info.java"
-    },
-    {
-      "path": "google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/GrpcIamCredentialsCallableFactory.java"
-    },
-    {
-      "path": "google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/GrpcIamCredentialsStub.java"
-    },
-    {
-      "path": "google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/IamCredentialsStub.java"
-    },
-    {
-      "path": "google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/IamCredentialsStubSettings.java"
-    },
-    {
-      "path": "google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/IamCredentialsClientTest.java"
-    },
-    {
-      "path": "google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/MockIAMCredentials.java"
-    },
-    {
-      "path": "google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/MockIAMCredentialsImpl.java"
-    },
-    {
-      "path": "grpc-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/IAMCredentialsGrpc.java"
-    },
-    {
-      "path": "java.header"
-    },
-    {
-      "path": "license-checks.xml"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/GenerateAccessTokenRequest.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/GenerateAccessTokenRequestOrBuilder.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/GenerateAccessTokenResponse.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/GenerateAccessTokenResponseOrBuilder.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/GenerateIdTokenRequest.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/GenerateIdTokenRequestOrBuilder.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/GenerateIdTokenResponse.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/GenerateIdTokenResponseOrBuilder.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/IAMCredentialsCommonProto.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/IAMCredentialsProto.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/ServiceAccountName.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/SignBlobRequest.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/SignBlobRequestOrBuilder.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/SignBlobResponse.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/SignBlobResponseOrBuilder.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/SignJwtRequest.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/SignJwtRequestOrBuilder.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/SignJwtResponse.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/java/com/google/cloud/iam/credentials/v1/SignJwtResponseOrBuilder.java"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/proto/google/iam/credentials/v1/common.proto"
-    },
-    {
-      "path": "proto-google-cloud-iamcredentials-v1/src/main/proto/google/iam/credentials/v1/iamcredentials.proto"
-    },
-    {
-      "path": "renovate.json"
-    }
   ]
 }
\ No newline at end of file