--- /dev/null
+// Copyright 2016 gRPC authors.
+//
+// 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 grpc.lb.v1;
+option go_package = "google.golang.org/grpc/grpclb/grpc_lb_v1/service";
+
+import "grpc_lb_v1/messages/messages.proto";
+
+service LoadBalancer {
+ // Bidirectional rpc to get a list of servers.
+ rpc BalanceLoad(stream LoadBalanceRequest)
+ returns (stream LoadBalanceResponse);
+}