docs: update generated docs (#1053)

Updates for both discovery docs and epydoc API Documentation

Fixes: #1049
diff --git a/docs/dyn/cloudtrace_v2beta1.projects.traceSinks.html b/docs/dyn/cloudtrace_v2beta1.projects.traceSinks.html
index a6c2f2b..203405f 100644
--- a/docs/dyn/cloudtrace_v2beta1.projects.traceSinks.html
+++ b/docs/dyn/cloudtrace_v2beta1.projects.traceSinks.html
@@ -75,8 +75,11 @@
 <h1><a href="cloudtrace_v2beta1.html">Cloud Trace API</a> . <a href="cloudtrace_v2beta1.projects.html">projects</a> . <a href="cloudtrace_v2beta1.projects.traceSinks.html">traceSinks</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
+  <code><a href="#close">close()</a></code></p>
+<p class="firstline">Close httplib2 connections.</p>
+<p class="toc_element">
   <code><a href="#create">create(parent, body=None, x__xgafv=None)</a></code></p>
-<p class="firstline">Creates a sink that exports trace spans to a destination.  The</p>
+<p class="firstline">Creates a sink that exports trace spans to a destination. The export of newly-ingested traces begins immediately, unless the sink's `writer_identity` is not permitted to write to the destination. A sink can export traces only from the resource owning the sink (the 'parent').</p>
 <p class="toc_element">
   <code><a href="#delete">delete(name, x__xgafv=None)</a></code></p>
 <p class="firstline">Deletes a sink.</p>
@@ -91,57 +94,29 @@
 <p class="firstline">Retrieves the next page of results.</p>
 <p class="toc_element">
   <code><a href="#patch">patch(name, body=None, updateMask=None, x__xgafv=None)</a></code></p>
-<p class="firstline">Updates a sink.  This method updates fields in the existing sink according</p>
+<p class="firstline">Updates a sink. This method updates fields in the existing sink according to the provided update mask. The sink's name cannot be changed nor any output-only fields (e.g. the writer_identity).</p>
 <h3>Method Details</h3>
 <div class="method">
+    <code class="details" id="close">close()</code>
+  <pre>Close httplib2 connections.</pre>
+</div>
+
+<div class="method">
     <code class="details" id="create">create(parent, body=None, x__xgafv=None)</code>
-  <pre>Creates a sink that exports trace spans to a destination.  The
-export of newly-ingested traces begins immediately, unless the sink&#x27;s
-`writer_identity` is not permitted to write to the destination.  A sink can
-export traces only from the resource owning the sink (the &#x27;parent&#x27;).
+  <pre>Creates a sink that exports trace spans to a destination. The export of newly-ingested traces begins immediately, unless the sink&#x27;s `writer_identity` is not permitted to write to the destination. A sink can export traces only from the resource owning the sink (the &#x27;parent&#x27;).
 
 Args:
-  parent: string, Required. The resource in which to create the sink (currently only project
-sinks are supported):
-
-    &quot;projects/[PROJECT_ID]&quot;
-
-Examples: `&quot;projects/my-trace-project&quot;`, `&quot;projects/123456789&quot;`. (required)
+  parent: string, Required. The resource in which to create the sink (currently only project sinks are supported): &quot;projects/[PROJECT_ID]&quot; Examples: `&quot;projects/my-trace-project&quot;`, `&quot;projects/123456789&quot;`. (required)
   body: object, The request body.
     The object takes the form of:
 
-{ # Describes a sink used to export traces to a BigQuery dataset. The sink must
-    # be created within a project.
-  &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
-    &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is
-        # supported. E.g.:
-        #
-        #     &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
-  },
-  &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the
-      # form:
-      # 
-      #   project/[PROJECT_NUMBER]/traceSinks/[SINK_ID].
-      # 
-      # E.g.:
-      # 
-      #   `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`.
-      # 
-      # Sink identifiers are limited to 256 characters and can include only the
-      # following characters: upper and lower-case alphanumeric characters,
-      # underscores, hyphens, and periods.
-  &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is
-      # set by sinks.create and sinks.update. The service account will need to be
-      # granted write access to the destination specified in the output
-      # configuration, see [Granting access for a
-      # resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource).
-      # To create tables and write data this account will need the dataEditor role.
-      # Read more about roles in the [BigQuery
-      # documentation](https://cloud.google.com/bigquery/docs/access-control).
-      # E.g.:
-      # 
-      #    &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
-}
+{ # Describes a sink used to export traces to a BigQuery dataset. The sink must be created within a project.
+    &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the form: project/[PROJECT_NUMBER]/traceSinks/[SINK_ID]. E.g.: `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`. Sink identifiers are limited to 256 characters and can include only the following characters: upper and lower-case alphanumeric characters, underscores, hyphens, and periods.
+    &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is set by sinks.create and sinks.update. The service account will need to be granted write access to the destination specified in the output configuration, see [Granting access for a resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource). To create tables and write data this account will need the dataEditor role. Read more about roles in the [BigQuery documentation](https://cloud.google.com/bigquery/docs/access-control). E.g.: &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
+    &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
+      &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is supported. E.g.: &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
+    },
+  }
 
   x__xgafv: string, V1 error format.
     Allowed values
@@ -151,38 +126,13 @@
 Returns:
   An object of the form:
 
-    { # Describes a sink used to export traces to a BigQuery dataset. The sink must
-      # be created within a project.
-    &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
-      &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is
-          # supported. E.g.:
-          #
-          #     &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
-    },
-    &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the
-        # form:
-        #
-        #   project/[PROJECT_NUMBER]/traceSinks/[SINK_ID].
-        #
-        # E.g.:
-        #
-        #   `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`.
-        #
-        # Sink identifiers are limited to 256 characters and can include only the
-        # following characters: upper and lower-case alphanumeric characters,
-        # underscores, hyphens, and periods.
-    &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is
-        # set by sinks.create and sinks.update. The service account will need to be
-        # granted write access to the destination specified in the output
-        # configuration, see [Granting access for a
-        # resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource).
-        # To create tables and write data this account will need the dataEditor role.
-        # Read more about roles in the [BigQuery
-        # documentation](https://cloud.google.com/bigquery/docs/access-control).
-        # E.g.:
-        #
-        #    &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
-  }</pre>
+    { # Describes a sink used to export traces to a BigQuery dataset. The sink must be created within a project.
+      &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the form: project/[PROJECT_NUMBER]/traceSinks/[SINK_ID]. E.g.: `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`. Sink identifiers are limited to 256 characters and can include only the following characters: upper and lower-case alphanumeric characters, underscores, hyphens, and periods.
+      &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is set by sinks.create and sinks.update. The service account will need to be granted write access to the destination specified in the output configuration, see [Granting access for a resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource). To create tables and write data this account will need the dataEditor role. Read more about roles in the [BigQuery documentation](https://cloud.google.com/bigquery/docs/access-control). E.g.: &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
+      &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
+        &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is supported. E.g.: &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
+      },
+    }</pre>
 </div>
 
 <div class="method">
@@ -190,12 +140,7 @@
   <pre>Deletes a sink.
 
 Args:
-  name: string, Required. The full resource name of the sink to delete, including the
-parent resource and the sink identifier:
-
-    &quot;projects/[PROJECT_NUMBER]/traceSinks/[SINK_ID]&quot;
-
-Example: `&quot;projects/12345/traceSinks/my-sink-id&quot;`. (required)
+  name: string, Required. The full resource name of the sink to delete, including the parent resource and the sink identifier: &quot;projects/[PROJECT_NUMBER]/traceSinks/[SINK_ID]&quot; Example: `&quot;projects/12345/traceSinks/my-sink-id&quot;`. (required)
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -204,15 +149,7 @@
 Returns:
   An object of the form:
 
-    { # A generic empty message that you can re-use to avoid defining duplicated
-      # empty messages in your APIs. A typical example is to use it as the request
-      # or the response type of an API method. For instance:
-      #
-      #     service Foo {
-      #       rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
-      #     }
-      #
-      # The JSON representation for `Empty` is empty JSON object `{}`.
+    { # A generic empty message that you can re-use to avoid defining duplicated empty messages in your APIs. A typical example is to use it as the request or the response type of an API method. For instance: service Foo { rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty); } The JSON representation for `Empty` is empty JSON object `{}`.
   }</pre>
 </div>
 
@@ -221,11 +158,7 @@
   <pre>Get a trace sink by name under the parent resource (GCP project).
 
 Args:
-  name: string, Required. The resource name of the sink:
-
-    &quot;projects/[PROJECT_NUMBER]/traceSinks/[SINK_ID]&quot;
-
-Example: `&quot;projects/12345/traceSinks/my-sink-id&quot;`. (required)
+  name: string, Required. The resource name of the sink: &quot;projects/[PROJECT_NUMBER]/traceSinks/[SINK_ID]&quot; Example: `&quot;projects/12345/traceSinks/my-sink-id&quot;`. (required)
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -234,38 +167,13 @@
 Returns:
   An object of the form:
 
-    { # Describes a sink used to export traces to a BigQuery dataset. The sink must
-      # be created within a project.
-    &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
-      &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is
-          # supported. E.g.:
-          #
-          #     &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
-    },
-    &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the
-        # form:
-        #
-        #   project/[PROJECT_NUMBER]/traceSinks/[SINK_ID].
-        #
-        # E.g.:
-        #
-        #   `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`.
-        #
-        # Sink identifiers are limited to 256 characters and can include only the
-        # following characters: upper and lower-case alphanumeric characters,
-        # underscores, hyphens, and periods.
-    &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is
-        # set by sinks.create and sinks.update. The service account will need to be
-        # granted write access to the destination specified in the output
-        # configuration, see [Granting access for a
-        # resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource).
-        # To create tables and write data this account will need the dataEditor role.
-        # Read more about roles in the [BigQuery
-        # documentation](https://cloud.google.com/bigquery/docs/access-control).
-        # E.g.:
-        #
-        #    &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
-  }</pre>
+    { # Describes a sink used to export traces to a BigQuery dataset. The sink must be created within a project.
+      &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the form: project/[PROJECT_NUMBER]/traceSinks/[SINK_ID]. E.g.: `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`. Sink identifiers are limited to 256 characters and can include only the following characters: upper and lower-case alphanumeric characters, underscores, hyphens, and periods.
+      &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is set by sinks.create and sinks.update. The service account will need to be granted write access to the destination specified in the output configuration, see [Granting access for a resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource). To create tables and write data this account will need the dataEditor role. Read more about roles in the [BigQuery documentation](https://cloud.google.com/bigquery/docs/access-control). E.g.: &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
+      &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
+        &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is supported. E.g.: &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
+      },
+    }</pre>
 </div>
 
 <div class="method">
@@ -273,17 +181,9 @@
   <pre>List all sinks for the parent resource (GCP project).
 
 Args:
-  parent: string, Required. The parent resource whose sinks are to be listed (currently only
-project parent resources are supported):
-
-    &quot;projects/[PROJECT_ID]&quot; (required)
-  pageToken: string, Optional. If present, then retrieve the next batch of results from the
-preceding call to this method.  `pageToken` must be the value of
-`nextPageToken` from the previous response.  The values of other method
-parameters should be identical to those in the previous call.
-  pageSize: integer, Optional. The maximum number of results to return from this request.
-Non-positive values are ignored.  The presence of `nextPageToken` in the
-response indicates that more results might be available.
+  parent: string, Required. The parent resource whose sinks are to be listed (currently only project parent resources are supported): &quot;projects/[PROJECT_ID]&quot; (required)
+  pageToken: string, Optional. If present, then retrieve the next batch of results from the preceding call to this method. `pageToken` must be the value of `nextPageToken` from the previous response. The values of other method parameters should be identical to those in the previous call.
+  pageSize: integer, Optional. The maximum number of results to return from this request. Non-positive values are ignored. The presence of `nextPageToken` in the response indicates that more results might be available.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -293,43 +193,16 @@
   An object of the form:
 
     { # Result returned from `ListTraceSinks`.
-    &quot;nextPageToken&quot;: &quot;A String&quot;, # If there might be more results than appear in this response, then
-        # `nextPageToken` is included.  To get the next set of results, call the same
-        # method again using the value of `nextPageToken` as `pageToken`.
     &quot;sinks&quot;: [ # A list of sinks.
-      { # Describes a sink used to export traces to a BigQuery dataset. The sink must
-          # be created within a project.
-        &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
-          &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is
-              # supported. E.g.:
-              #
-              #     &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
+      { # Describes a sink used to export traces to a BigQuery dataset. The sink must be created within a project.
+          &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the form: project/[PROJECT_NUMBER]/traceSinks/[SINK_ID]. E.g.: `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`. Sink identifiers are limited to 256 characters and can include only the following characters: upper and lower-case alphanumeric characters, underscores, hyphens, and periods.
+          &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is set by sinks.create and sinks.update. The service account will need to be granted write access to the destination specified in the output configuration, see [Granting access for a resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource). To create tables and write data this account will need the dataEditor role. Read more about roles in the [BigQuery documentation](https://cloud.google.com/bigquery/docs/access-control). E.g.: &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
+          &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
+            &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is supported. E.g.: &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
+          },
         },
-        &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the
-            # form:
-            #
-            #   project/[PROJECT_NUMBER]/traceSinks/[SINK_ID].
-            #
-            # E.g.:
-            #
-            #   `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`.
-            #
-            # Sink identifiers are limited to 256 characters and can include only the
-            # following characters: upper and lower-case alphanumeric characters,
-            # underscores, hyphens, and periods.
-        &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is
-            # set by sinks.create and sinks.update. The service account will need to be
-            # granted write access to the destination specified in the output
-            # configuration, see [Granting access for a
-            # resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource).
-            # To create tables and write data this account will need the dataEditor role.
-            # Read more about roles in the [BigQuery
-            # documentation](https://cloud.google.com/bigquery/docs/access-control).
-            # E.g.:
-            #
-            #    &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
-      },
     ],
+    &quot;nextPageToken&quot;: &quot;A String&quot;, # If there might be more results than appear in this response, then `nextPageToken` is included. To get the next set of results, call the same method again using the value of `nextPageToken` as `pageToken`.
   }</pre>
 </div>
 
@@ -349,63 +222,22 @@
 
 <div class="method">
     <code class="details" id="patch">patch(name, body=None, updateMask=None, x__xgafv=None)</code>
-  <pre>Updates a sink.  This method updates fields in the existing sink according
-to the provided update mask. The sink&#x27;s name cannot be changed nor any
-output-only fields (e.g. the writer_identity).
+  <pre>Updates a sink. This method updates fields in the existing sink according to the provided update mask. The sink&#x27;s name cannot be changed nor any output-only fields (e.g. the writer_identity).
 
 Args:
-  name: string, Required. The full resource name of the sink to update, including the
-parent resource and the sink identifier:
-
-    &quot;projects/[PROJECT_NUMBER]/traceSinks/[SINK_ID]&quot;
-
-Example: `&quot;projects/12345/traceSinks/my-sink-id&quot;`. (required)
+  name: string, Required. The full resource name of the sink to update, including the parent resource and the sink identifier: &quot;projects/[PROJECT_NUMBER]/traceSinks/[SINK_ID]&quot; Example: `&quot;projects/12345/traceSinks/my-sink-id&quot;`. (required)
   body: object, The request body.
     The object takes the form of:
 
-{ # Describes a sink used to export traces to a BigQuery dataset. The sink must
-    # be created within a project.
-  &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
-    &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is
-        # supported. E.g.:
-        #
-        #     &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
-  },
-  &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the
-      # form:
-      # 
-      #   project/[PROJECT_NUMBER]/traceSinks/[SINK_ID].
-      # 
-      # E.g.:
-      # 
-      #   `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`.
-      # 
-      # Sink identifiers are limited to 256 characters and can include only the
-      # following characters: upper and lower-case alphanumeric characters,
-      # underscores, hyphens, and periods.
-  &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is
-      # set by sinks.create and sinks.update. The service account will need to be
-      # granted write access to the destination specified in the output
-      # configuration, see [Granting access for a
-      # resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource).
-      # To create tables and write data this account will need the dataEditor role.
-      # Read more about roles in the [BigQuery
-      # documentation](https://cloud.google.com/bigquery/docs/access-control).
-      # E.g.:
-      # 
-      #    &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
-}
+{ # Describes a sink used to export traces to a BigQuery dataset. The sink must be created within a project.
+    &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the form: project/[PROJECT_NUMBER]/traceSinks/[SINK_ID]. E.g.: `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`. Sink identifiers are limited to 256 characters and can include only the following characters: upper and lower-case alphanumeric characters, underscores, hyphens, and periods.
+    &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is set by sinks.create and sinks.update. The service account will need to be granted write access to the destination specified in the output configuration, see [Granting access for a resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource). To create tables and write data this account will need the dataEditor role. Read more about roles in the [BigQuery documentation](https://cloud.google.com/bigquery/docs/access-control). E.g.: &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
+    &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
+      &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is supported. E.g.: &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
+    },
+  }
 
-  updateMask: string, Required. Field mask that specifies the fields in `trace_sink` that are to
-be updated. A sink field is overwritten if, and only if, it is
-in the update mask.  `name` and `writer_identity` fields cannot be updated.
-
-An empty updateMask is considered an error.
-
-For a detailed `FieldMask` definition, see
-https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#fieldmask
-
-Example: `updateMask=output_config`.
+  updateMask: string, Required. Field mask that specifies the fields in `trace_sink` that are to be updated. A sink field is overwritten if, and only if, it is in the update mask. `name` and `writer_identity` fields cannot be updated. An empty updateMask is considered an error. For a detailed `FieldMask` definition, see https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#fieldmask Example: `updateMask=output_config`.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -414,38 +246,13 @@
 Returns:
   An object of the form:
 
-    { # Describes a sink used to export traces to a BigQuery dataset. The sink must
-      # be created within a project.
-    &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
-      &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is
-          # supported. E.g.:
-          #
-          #     &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
-    },
-    &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the
-        # form:
-        #
-        #   project/[PROJECT_NUMBER]/traceSinks/[SINK_ID].
-        #
-        # E.g.:
-        #
-        #   `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`.
-        #
-        # Sink identifiers are limited to 256 characters and can include only the
-        # following characters: upper and lower-case alphanumeric characters,
-        # underscores, hyphens, and periods.
-    &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is
-        # set by sinks.create and sinks.update. The service account will need to be
-        # granted write access to the destination specified in the output
-        # configuration, see [Granting access for a
-        # resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource).
-        # To create tables and write data this account will need the dataEditor role.
-        # Read more about roles in the [BigQuery
-        # documentation](https://cloud.google.com/bigquery/docs/access-control).
-        # E.g.:
-        #
-        #    &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
-  }</pre>
+    { # Describes a sink used to export traces to a BigQuery dataset. The sink must be created within a project.
+      &quot;name&quot;: &quot;A String&quot;, # Required. The canonical sink resource name, unique within the project. Must be of the form: project/[PROJECT_NUMBER]/traceSinks/[SINK_ID]. E.g.: `&quot;projects/12345/traceSinks/my-project-trace-sink&quot;`. Sink identifiers are limited to 256 characters and can include only the following characters: upper and lower-case alphanumeric characters, underscores, hyphens, and periods.
+      &quot;writerIdentity&quot;: &quot;A String&quot;, # Output only. A service account name for exporting the data. This field is set by sinks.create and sinks.update. The service account will need to be granted write access to the destination specified in the output configuration, see [Granting access for a resource](/iam/docs/granting-roles-to-service-accounts#granting_access_to_a_service_account_for_a_resource). To create tables and write data this account will need the dataEditor role. Read more about roles in the [BigQuery documentation](https://cloud.google.com/bigquery/docs/access-control). E.g.: &quot;service-00000001@00000002.iam.gserviceaccount.com&quot;
+      &quot;outputConfig&quot;: { # OutputConfig contains a destination for writing trace data. # Required. The export destination.
+        &quot;destination&quot;: &quot;A String&quot;, # The destination for writing trace data. Currently only BigQuery is supported. E.g.: &quot;bigquery.googleapis.com/projects/[PROJECT_ID]/datasets/[DATASET]&quot;
+      },
+    }</pre>
 </div>
 
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