diff --git a/proto-google-cloud-billingbudgets-v1beta1/src/main/java/com/google/cloud/billing/budgets/v1beta1/AllUpdatesRule.java b/proto-google-cloud-billingbudgets-v1beta1/src/main/java/com/google/cloud/billing/budgets/v1beta1/AllUpdatesRule.java
index 5b3d5059..858e7a9a 100644
--- a/proto-google-cloud-billingbudgets-v1beta1/src/main/java/com/google/cloud/billing/budgets/v1beta1/AllUpdatesRule.java
+++ b/proto-google-cloud-billingbudgets-v1beta1/src/main/java/com/google/cloud/billing/budgets/v1beta1/AllUpdatesRule.java
@@ -123,14 +123,11 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    *
    * <pre>
    * Required. The name of the Cloud Pub/Sub topic where budget related messages will be
-   * published, in the form `projects/{project_id}/topics/{topic_id}`.
-   * Updates are sent at regular intervals to the topic.
-   * When a topic is set for a budget, the `pubsub.topics.publish` IAM
-   * permission must be granted on the topic (or the parent project of the
-   * topic) to `billing-budget-alert&#64;system.gserviceaccount.com`.
-   * If this permission is not present when a topic is provided at the time of
-   * budget creation or updating, the API call will fail with PERMISSION_DENIED.
-   * See https://cloud.google.com/pubsub/docs/access-control for more details on
+   * published, in the form `projects/{project_id}/topics/{topic_id}`. Updates
+   * are sent at regular intervals to the topic. Caller is expected to have
+   * `pubsub.topics.setIamPolicy` permission on the topic when it's set for a
+   * budget, otherwise, the API call will fail with PERMISSION_DENIED. See
+   * https://cloud.google.com/pubsub/docs/access-control for more details on
    * Pub/Sub roles and permissions.
    * </pre>
    *
@@ -152,14 +149,11 @@ public java.lang.String getPubsubTopic() {
    *
    * <pre>
    * Required. The name of the Cloud Pub/Sub topic where budget related messages will be
-   * published, in the form `projects/{project_id}/topics/{topic_id}`.
-   * Updates are sent at regular intervals to the topic.
-   * When a topic is set for a budget, the `pubsub.topics.publish` IAM
-   * permission must be granted on the topic (or the parent project of the
-   * topic) to `billing-budget-alert&#64;system.gserviceaccount.com`.
-   * If this permission is not present when a topic is provided at the time of
-   * budget creation or updating, the API call will fail with PERMISSION_DENIED.
-   * See https://cloud.google.com/pubsub/docs/access-control for more details on
+   * published, in the form `projects/{project_id}/topics/{topic_id}`. Updates
+   * are sent at regular intervals to the topic. Caller is expected to have
+   * `pubsub.topics.setIamPolicy` permission on the topic when it's set for a
+   * budget, otherwise, the API call will fail with PERMISSION_DENIED. See
+   * https://cloud.google.com/pubsub/docs/access-control for more details on
    * Pub/Sub roles and permissions.
    * </pre>
    *
@@ -567,14 +561,11 @@ public Builder mergeFrom(
      *
      * <pre>
      * Required. The name of the Cloud Pub/Sub topic where budget related messages will be
-     * published, in the form `projects/{project_id}/topics/{topic_id}`.
-     * Updates are sent at regular intervals to the topic.
-     * When a topic is set for a budget, the `pubsub.topics.publish` IAM
-     * permission must be granted on the topic (or the parent project of the
-     * topic) to `billing-budget-alert&#64;system.gserviceaccount.com`.
-     * If this permission is not present when a topic is provided at the time of
-     * budget creation or updating, the API call will fail with PERMISSION_DENIED.
-     * See https://cloud.google.com/pubsub/docs/access-control for more details on
+     * published, in the form `projects/{project_id}/topics/{topic_id}`. Updates
+     * are sent at regular intervals to the topic. Caller is expected to have
+     * `pubsub.topics.setIamPolicy` permission on the topic when it's set for a
+     * budget, otherwise, the API call will fail with PERMISSION_DENIED. See
+     * https://cloud.google.com/pubsub/docs/access-control for more details on
      * Pub/Sub roles and permissions.
      * </pre>
      *
@@ -596,14 +587,11 @@ public java.lang.String getPubsubTopic() {
      *
      * <pre>
      * Required. The name of the Cloud Pub/Sub topic where budget related messages will be
-     * published, in the form `projects/{project_id}/topics/{topic_id}`.
-     * Updates are sent at regular intervals to the topic.
-     * When a topic is set for a budget, the `pubsub.topics.publish` IAM
-     * permission must be granted on the topic (or the parent project of the
-     * topic) to `billing-budget-alert&#64;system.gserviceaccount.com`.
-     * If this permission is not present when a topic is provided at the time of
-     * budget creation or updating, the API call will fail with PERMISSION_DENIED.
-     * See https://cloud.google.com/pubsub/docs/access-control for more details on
+     * published, in the form `projects/{project_id}/topics/{topic_id}`. Updates
+     * are sent at regular intervals to the topic. Caller is expected to have
+     * `pubsub.topics.setIamPolicy` permission on the topic when it's set for a
+     * budget, otherwise, the API call will fail with PERMISSION_DENIED. See
+     * https://cloud.google.com/pubsub/docs/access-control for more details on
      * Pub/Sub roles and permissions.
      * </pre>
      *
@@ -625,14 +613,11 @@ public com.google.protobuf.ByteString getPubsubTopicBytes() {
      *
      * <pre>
      * Required. The name of the Cloud Pub/Sub topic where budget related messages will be
-     * published, in the form `projects/{project_id}/topics/{topic_id}`.
-     * Updates are sent at regular intervals to the topic.
-     * When a topic is set for a budget, the `pubsub.topics.publish` IAM
-     * permission must be granted on the topic (or the parent project of the
-     * topic) to `billing-budget-alert&#64;system.gserviceaccount.com`.
-     * If this permission is not present when a topic is provided at the time of
-     * budget creation or updating, the API call will fail with PERMISSION_DENIED.
-     * See https://cloud.google.com/pubsub/docs/access-control for more details on
+     * published, in the form `projects/{project_id}/topics/{topic_id}`. Updates
+     * are sent at regular intervals to the topic. Caller is expected to have
+     * `pubsub.topics.setIamPolicy` permission on the topic when it's set for a
+     * budget, otherwise, the API call will fail with PERMISSION_DENIED. See
+     * https://cloud.google.com/pubsub/docs/access-control for more details on
      * Pub/Sub roles and permissions.
      * </pre>
      *
@@ -652,14 +637,11 @@ public Builder setPubsubTopic(java.lang.String value) {
      *
      * <pre>
      * Required. The name of the Cloud Pub/Sub topic where budget related messages will be
-     * published, in the form `projects/{project_id}/topics/{topic_id}`.
-     * Updates are sent at regular intervals to the topic.
-     * When a topic is set for a budget, the `pubsub.topics.publish` IAM
-     * permission must be granted on the topic (or the parent project of the
-     * topic) to `billing-budget-alert&#64;system.gserviceaccount.com`.
-     * If this permission is not present when a topic is provided at the time of
-     * budget creation or updating, the API call will fail with PERMISSION_DENIED.
-     * See https://cloud.google.com/pubsub/docs/access-control for more details on
+     * published, in the form `projects/{project_id}/topics/{topic_id}`. Updates
+     * are sent at regular intervals to the topic. Caller is expected to have
+     * `pubsub.topics.setIamPolicy` permission on the topic when it's set for a
+     * budget, otherwise, the API call will fail with PERMISSION_DENIED. See
+     * https://cloud.google.com/pubsub/docs/access-control for more details on
      * Pub/Sub roles and permissions.
      * </pre>
      *
@@ -676,14 +658,11 @@ public Builder clearPubsubTopic() {
      *
      * <pre>
      * Required. The name of the Cloud Pub/Sub topic where budget related messages will be
-     * published, in the form `projects/{project_id}/topics/{topic_id}`.
-     * Updates are sent at regular intervals to the topic.
-     * When a topic is set for a budget, the `pubsub.topics.publish` IAM
-     * permission must be granted on the topic (or the parent project of the
-     * topic) to `billing-budget-alert&#64;system.gserviceaccount.com`.
-     * If this permission is not present when a topic is provided at the time of
-     * budget creation or updating, the API call will fail with PERMISSION_DENIED.
-     * See https://cloud.google.com/pubsub/docs/access-control for more details on
+     * published, in the form `projects/{project_id}/topics/{topic_id}`. Updates
+     * are sent at regular intervals to the topic. Caller is expected to have
+     * `pubsub.topics.setIamPolicy` permission on the topic when it's set for a
+     * budget, otherwise, the API call will fail with PERMISSION_DENIED. See
+     * https://cloud.google.com/pubsub/docs/access-control for more details on
      * Pub/Sub roles and permissions.
      * </pre>
      *
diff --git a/proto-google-cloud-billingbudgets-v1beta1/src/main/java/com/google/cloud/billing/budgets/v1beta1/AllUpdatesRuleOrBuilder.java b/proto-google-cloud-billingbudgets-v1beta1/src/main/java/com/google/cloud/billing/budgets/v1beta1/AllUpdatesRuleOrBuilder.java
index bd2dd5a5..f7f5d1bc 100644
--- a/proto-google-cloud-billingbudgets-v1beta1/src/main/java/com/google/cloud/billing/budgets/v1beta1/AllUpdatesRuleOrBuilder.java
+++ b/proto-google-cloud-billingbudgets-v1beta1/src/main/java/com/google/cloud/billing/budgets/v1beta1/AllUpdatesRuleOrBuilder.java
@@ -28,14 +28,11 @@ public interface AllUpdatesRuleOrBuilder
    *
    * <pre>
    * Required. The name of the Cloud Pub/Sub topic where budget related messages will be
-   * published, in the form `projects/{project_id}/topics/{topic_id}`.
-   * Updates are sent at regular intervals to the topic.
-   * When a topic is set for a budget, the `pubsub.topics.publish` IAM
-   * permission must be granted on the topic (or the parent project of the
-   * topic) to `billing-budget-alert&#64;system.gserviceaccount.com`.
-   * If this permission is not present when a topic is provided at the time of
-   * budget creation or updating, the API call will fail with PERMISSION_DENIED.
-   * See https://cloud.google.com/pubsub/docs/access-control for more details on
+   * published, in the form `projects/{project_id}/topics/{topic_id}`. Updates
+   * are sent at regular intervals to the topic. Caller is expected to have
+   * `pubsub.topics.setIamPolicy` permission on the topic when it's set for a
+   * budget, otherwise, the API call will fail with PERMISSION_DENIED. See
+   * https://cloud.google.com/pubsub/docs/access-control for more details on
    * Pub/Sub roles and permissions.
    * </pre>
    *
@@ -47,14 +44,11 @@ public interface AllUpdatesRuleOrBuilder
    *
    * <pre>
    * Required. The name of the Cloud Pub/Sub topic where budget related messages will be
-   * published, in the form `projects/{project_id}/topics/{topic_id}`.
-   * Updates are sent at regular intervals to the topic.
-   * When a topic is set for a budget, the `pubsub.topics.publish` IAM
-   * permission must be granted on the topic (or the parent project of the
-   * topic) to `billing-budget-alert&#64;system.gserviceaccount.com`.
-   * If this permission is not present when a topic is provided at the time of
-   * budget creation or updating, the API call will fail with PERMISSION_DENIED.
-   * See https://cloud.google.com/pubsub/docs/access-control for more details on
+   * published, in the form `projects/{project_id}/topics/{topic_id}`. Updates
+   * are sent at regular intervals to the topic. Caller is expected to have
+   * `pubsub.topics.setIamPolicy` permission on the topic when it's set for a
+   * budget, otherwise, the API call will fail with PERMISSION_DENIED. See
+   * https://cloud.google.com/pubsub/docs/access-control for more details on
    * Pub/Sub roles and permissions.
    * </pre>
    *
diff --git a/proto-google-cloud-billingbudgets-v1beta1/src/main/proto/google/cloud/billing/budgets/v1beta1/budget_model.proto b/proto-google-cloud-billingbudgets-v1beta1/src/main/proto/google/cloud/billing/budgets/v1beta1/budget_model.proto
index 0a885331..e7d5ca2b 100644
--- a/proto-google-cloud-billingbudgets-v1beta1/src/main/proto/google/cloud/billing/budgets/v1beta1/budget_model.proto
+++ b/proto-google-cloud-billingbudgets-v1beta1/src/main/proto/google/cloud/billing/budgets/v1beta1/budget_model.proto
@@ -124,14 +124,11 @@ message ThresholdRule {
 // threshold rules.
 message AllUpdatesRule {
   // Required. The name of the Cloud Pub/Sub topic where budget related messages will be
-  // published, in the form `projects/{project_id}/topics/{topic_id}`.
-  // Updates are sent at regular intervals to the topic.
-  // When a topic is set for a budget, the `pubsub.topics.publish` IAM
-  // permission must be granted on the topic (or the parent project of the
-  // topic) to `billing-budget-alert@system.gserviceaccount.com`.
-  // If this permission is not present when a topic is provided at the time of
-  // budget creation or updating, the API call will fail with PERMISSION_DENIED.
-  // See https://cloud.google.com/pubsub/docs/access-control for more details on
+  // published, in the form `projects/{project_id}/topics/{topic_id}`. Updates
+  // are sent at regular intervals to the topic. Caller is expected to have
+  // `pubsub.topics.setIamPolicy` permission on the topic when it's set for a
+  // budget, otherwise, the API call will fail with PERMISSION_DENIED. See
+  // https://cloud.google.com/pubsub/docs/access-control for more details on
   // Pub/Sub roles and permissions.
   string pubsub_topic = 1 [(google.api.field_behavior) = REQUIRED];
 
diff --git a/synth.metadata b/synth.metadata
index da60a1f8..dfd86f48 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-10-30T22:42:47.890284Z",
+  "updateTime": "2019-11-11T21:10:32.302489Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.41.0",
-        "dockerImage": "googleapis/artman@sha256:75b38a3b073a7b243545f2332463096624c802bb1e56b8cb6f22ba1ecd325fa9"
+        "version": "0.41.1",
+        "dockerImage": "googleapis/artman@sha256:545c758c76c3f779037aa259023ec3d1ef2d57d2c8cd00a222cb187d63ceac5e"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "4e952e7e2bb0dd2ef389d552d48f44c8dc4b5f8f",
-        "internalRef": "277595731"
+        "sha": "f69562be0608904932bdcfbc5ad8b9a22d9dceb8",
+        "internalRef": "279774957"
       }
     },
     {