feat: add response_params proto to clients

PiperOrigin-RevId: 459247753

google/bigtable/v2/bigtable_v2.yaml

@@ -6,6 +6,9 @@ title: Cloud Bigtable API
 apis:
 - name: google.bigtable.v2.Bigtable
 
+types:
+- name: google.bigtable.v2.ResponseParams
+
 documentation:
   summary: |-
     API for reading and writing the contents of Bigtables associated with a

google/bigtable/v2/response_params.proto

@@ -0,0 +1,38 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.bigtable.v2;
+
+option csharp_namespace = "Google.Cloud.Bigtable.V2";
+option go_package = "google.golang.org/genproto/googleapis/bigtable/v2;bigtable";
+option java_multiple_files = true;
+option java_outer_classname = "ResponseParamsProto";
+option java_package = "com.google.bigtable.v2";
+option php_namespace = "Google\\Cloud\\Bigtable\\V2";
+option ruby_package = "Google::Cloud::Bigtable::V2";
+
+// Response metadata proto
+// This is an experimental feature that will be used to get zone_id and
+// cluster_id from response trailers to tag the metrics. This should not be
+// used by customers directly
+message ResponseParams {
+  // The cloud bigtable zone associated with the cluster.
+  optional string zone_id = 1;
+
+  // Identifier for a cluster that represents set of
+  // bigtable resources.
+  optional string cluster_id = 2;
+}