docs: docs update (#911)

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Fixes #<issue_number_goes_here> 🦕
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+<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="#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="toc_element">
+  <code><a href="#delete">delete(name, x__xgafv=None)</a></code></p>
+<p class="firstline">Deletes a sink.</p>
+<p class="toc_element">
+  <code><a href="#get">get(name, x__xgafv=None)</a></code></p>
+<p class="firstline">Get a trace sink by name under the parent resource (GCP project).</p>
+<p class="toc_element">
+  <code><a href="#list">list(parent, pageToken=None, pageSize=None, x__xgafv=None)</a></code></p>
+<p class="firstline">List all sinks for the parent resource (GCP project).</p>
+<p class="toc_element">
+  <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
+<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>
+<h3>Method Details</h3>
+<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;).
+
+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)
+  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;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;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;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;
+}
+
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+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;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;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;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>
+</div>
+
+<div class="method">
+    <code class="details" id="delete">delete(name, x__xgafv=None)</code>
+  <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)
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+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 `{}`.
+  }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="get">get(name, x__xgafv=None)</code>
+  <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)
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+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;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;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;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>
+</div>
+
+<div class="method">
+    <code class="details" id="list">list(parent, pageToken=None, pageSize=None, x__xgafv=None)</code>
+  <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.
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # Result returned from `ListTraceSinks`.
+    &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;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;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;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>
+
+<div class="method">
+    <code class="details" id="list_next">list_next(previous_request, previous_response)</code>
+  <pre>Retrieves the next page of results.
+
+Args:
+  previous_request: The request for the previous page. (required)
+  previous_response: The response from the request for the previous page. (required)
+
+Returns:
+  A request object that you can call &#x27;execute()&#x27; on to request the next
+  page. Returns None if there are no more items in the collection.
+    </pre>
+</div>
+
+<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).
+
+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)
+  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;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;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;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;
+}
+
+  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
+      2 - v2 error format
+
+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;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;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;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>
+</div>
+
+</body></html>
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