diff --git a/generated/google/apis/appengine_v1.rb b/generated/google/apis/appengine_v1.rb
index 980bfd361..3a2155c6b 100644
--- a/generated/google/apis/appengine_v1.rb
+++ b/generated/google/apis/appengine_v1.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://cloud.google.com/appengine/docs/admin-api/
     module AppengineV1
       VERSION = 'V1'
-      REVISION = '20190926'
+      REVISION = '20191003'
 
       # View and manage your applications deployed on Google App Engine
       AUTH_APPENGINE_ADMIN = 'https://www.googleapis.com/auth/appengine.admin'
diff --git a/generated/google/apis/appengine_v1/service.rb b/generated/google/apis/appengine_v1/service.rb
index c5403cbf7..59c178bb6 100644
--- a/generated/google/apis/appengine_v1/service.rb
+++ b/generated/google/apis/appengine_v1/service.rb
@@ -1427,12 +1427,16 @@ module Google
           execute_or_queue_command(command, &block)
         end
         
-        # Stops a running instance.The instance will be automatically recreated based on
-        # the scaling settings of the version. If you want to stop all instances without
-        # re-creation (e.g. to avoid getting billed) use the apps.services.versions.
-        # patch (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/
-        # apps.services.versions/patch) method and change the serving status of the
-        # version to STOPPED.
+        # Stops a running instance.The instance might be automatically recreated based
+        # on the scaling settings of the version. For more information, see "How
+        # Instances are Managed" (standard environment (https://cloud.google.com/
+        # appengine/docs/standard/python/how-instances-are-managed) | flexible
+        # environment (https://cloud.google.com/appengine/docs/flexible/python/how-
+        # instances-are-managed)).To ensure that instances are not re-created and avoid
+        # getting billed, you can stop all instances within the target version by
+        # changing the serving status of the version to 'STOPPEDwith the
+        # [apps.services.versions.patch`](https://cloud.google.com/appengine/docs/admin-
+        # api/reference/rest/v1/apps.services.versions/patch) method.
         # @param [String] apps_id
         #   Part of `name`. Name of the resource requested. Example: apps/myapp/services/
         #   default/versions/v1/instances/instance-1.
diff --git a/generated/google/apis/appengine_v1beta.rb b/generated/google/apis/appengine_v1beta.rb
index de9edbb30..9b3d3d817 100644
--- a/generated/google/apis/appengine_v1beta.rb
+++ b/generated/google/apis/appengine_v1beta.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://cloud.google.com/appengine/docs/admin-api/
     module AppengineV1beta
       VERSION = 'V1beta'
-      REVISION = '20190926'
+      REVISION = '20191003'
 
       # View and manage your applications deployed on Google App Engine
       AUTH_APPENGINE_ADMIN = 'https://www.googleapis.com/auth/appengine.admin'
diff --git a/generated/google/apis/appengine_v1beta/service.rb b/generated/google/apis/appengine_v1beta/service.rb
index d761654a5..7bb154e9b 100644
--- a/generated/google/apis/appengine_v1beta/service.rb
+++ b/generated/google/apis/appengine_v1beta/service.rb
@@ -1427,12 +1427,16 @@ module Google
           execute_or_queue_command(command, &block)
         end
         
-        # Stops a running instance.The instance will be automatically recreated based on
-        # the scaling settings of the version. If you want to stop all instances without
-        # re-creation (e.g. to avoid getting billed) use the apps.services.versions.
-        # patch (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1beta/
-        # apps.services.versions/patch) method and change the serving status of the
-        # version to STOPPED.
+        # Stops a running instance.The instance might be automatically recreated based
+        # on the scaling settings of the version. For more information, see "How
+        # Instances are Managed" (standard environment (https://cloud.google.com/
+        # appengine/docs/standard/python/how-instances-are-managed) | flexible
+        # environment (https://cloud.google.com/appengine/docs/flexible/python/how-
+        # instances-are-managed)).To ensure that instances are not re-created and avoid
+        # getting billed, you can stop all instances within the target version by
+        # changing the serving status of the version to 'STOPPEDwith the
+        # [apps.services.versions.patch`](https://cloud.google.com/appengine/docs/admin-
+        # api/reference/rest/v1/apps.services.versions/patch) method.
         # @param [String] apps_id
         #   Part of `name`. Name of the resource requested. Example: apps/myapp/services/
         #   default/versions/v1/instances/instance-1.
diff --git a/generated/google/apis/cloudkms_v1.rb b/generated/google/apis/cloudkms_v1.rb
index bec0f6638..eafd34939 100644
--- a/generated/google/apis/cloudkms_v1.rb
+++ b/generated/google/apis/cloudkms_v1.rb
@@ -26,7 +26,7 @@ module Google
     # @see https://cloud.google.com/kms/
     module CloudkmsV1
       VERSION = 'V1'
-      REVISION = '20190926'
+      REVISION = '20191009'
 
       # View and manage your data across Google Cloud Platform services
       AUTH_CLOUD_PLATFORM = 'https://www.googleapis.com/auth/cloud-platform'
diff --git a/generated/google/apis/cloudkms_v1/service.rb b/generated/google/apis/cloudkms_v1/service.rb
index 6d23ef200..a1da8bcf9 100644
--- a/generated/google/apis/cloudkms_v1/service.rb
+++ b/generated/google/apis/cloudkms_v1/service.rb
@@ -281,6 +281,7 @@ module Google
         
         # Sets the access control policy on the specified resource. Replaces any
         # existing policy.
+        # Can return Public Errors: NOT_FOUND, INVALID_ARGUMENT and PERMISSION_DENIED
         # @param [String] resource
         #   REQUIRED: The resource for which the policy is being specified.
         #   See the operation documentation for the appropriate value for this field.
@@ -641,6 +642,7 @@ module Google
         
         # Sets the access control policy on the specified resource. Replaces any
         # existing policy.
+        # Can return Public Errors: NOT_FOUND, INVALID_ARGUMENT and PERMISSION_DENIED
         # @param [String] resource
         #   REQUIRED: The resource for which the policy is being specified.
         #   See the operation documentation for the appropriate value for this field.
@@ -1300,6 +1302,7 @@ module Google
         
         # Sets the access control policy on the specified resource. Replaces any
         # existing policy.
+        # Can return Public Errors: NOT_FOUND, INVALID_ARGUMENT and PERMISSION_DENIED
         # @param [String] resource
         #   REQUIRED: The resource for which the policy is being specified.
         #   See the operation documentation for the appropriate value for this field.
diff --git a/generated/google/apis/pubsub_v1.rb b/generated/google/apis/pubsub_v1.rb
index 8a0fce8c2..6371dc86f 100644
--- a/generated/google/apis/pubsub_v1.rb
+++ b/generated/google/apis/pubsub_v1.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://cloud.google.com/pubsub/docs
     module PubsubV1
       VERSION = 'V1'
-      REVISION = '20190923'
+      REVISION = '20191001'
 
       # View and manage your data across Google Cloud Platform services
       AUTH_CLOUD_PLATFORM = 'https://www.googleapis.com/auth/cloud-platform'
diff --git a/generated/google/apis/pubsub_v1/service.rb b/generated/google/apis/pubsub_v1/service.rb
index 81177a30d..b530aedc0 100644
--- a/generated/google/apis/pubsub_v1/service.rb
+++ b/generated/google/apis/pubsub_v1/service.rb
@@ -303,6 +303,7 @@ module Google
         
         # Sets the access control policy on the specified resource. Replaces any
         # existing policy.
+        # Can return Public Errors: NOT_FOUND, INVALID_ARGUMENT and PERMISSION_DENIED
         # @param [String] resource
         #   REQUIRED: The resource for which the policy is being specified.
         #   See the operation documentation for the appropriate value for this field.
@@ -802,6 +803,7 @@ module Google
         
         # Sets the access control policy on the specified resource. Replaces any
         # existing policy.
+        # Can return Public Errors: NOT_FOUND, INVALID_ARGUMENT and PERMISSION_DENIED
         # @param [String] resource
         #   REQUIRED: The resource for which the policy is being specified.
         #   See the operation documentation for the appropriate value for this field.
@@ -1136,6 +1138,7 @@ module Google
         
         # Sets the access control policy on the specified resource. Replaces any
         # existing policy.
+        # Can return Public Errors: NOT_FOUND, INVALID_ARGUMENT and PERMISSION_DENIED
         # @param [String] resource
         #   REQUIRED: The resource for which the policy is being specified.
         #   See the operation documentation for the appropriate value for this field.
diff --git a/generated/google/apis/pubsub_v1beta2.rb b/generated/google/apis/pubsub_v1beta2.rb
index 33baddb57..c578a2a8a 100644
--- a/generated/google/apis/pubsub_v1beta2.rb
+++ b/generated/google/apis/pubsub_v1beta2.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://cloud.google.com/pubsub/docs
     module PubsubV1beta2
       VERSION = 'V1beta2'
-      REVISION = '20190923'
+      REVISION = '20191001'
 
       # View and manage your data across Google Cloud Platform services
       AUTH_CLOUD_PLATFORM = 'https://www.googleapis.com/auth/cloud-platform'
diff --git a/generated/google/apis/pubsub_v1beta2/service.rb b/generated/google/apis/pubsub_v1beta2/service.rb
index 6c3c95a97..ec4a6d74e 100644
--- a/generated/google/apis/pubsub_v1beta2/service.rb
+++ b/generated/google/apis/pubsub_v1beta2/service.rb
@@ -383,6 +383,7 @@ module Google
         
         # Sets the access control policy on the specified resource. Replaces any
         # existing policy.
+        # Can return Public Errors: NOT_FOUND, INVALID_ARGUMENT and PERMISSION_DENIED
         # @param [String] resource
         #   REQUIRED: The resource for which the policy is being specified.
         #   See the operation documentation for the appropriate value for this field.
@@ -673,6 +674,7 @@ module Google
         
         # Sets the access control policy on the specified resource. Replaces any
         # existing policy.
+        # Can return Public Errors: NOT_FOUND, INVALID_ARGUMENT and PERMISSION_DENIED
         # @param [String] resource
         #   REQUIRED: The resource for which the policy is being specified.
         #   See the operation documentation for the appropriate value for this field.