@io.grpc.stub.annotations.RpcMethod(
      fullMethodName = SERVICE_NAME + '/' + "ListSubscriptions",
      requestType = com.google.apps.events.subscriptions.v1.ListSubscriptionsRequest.class,
      responseType = com.google.apps.events.subscriptions.v1.ListSubscriptionsResponse.class,
      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
  public static io.grpc.MethodDescriptor<
          com.google.apps.events.subscriptions.v1.ListSubscriptionsRequest,
          com.google.apps.events.subscriptions.v1.ListSubscriptionsResponse>
      getListSubscriptionsMethod() {
    io.grpc.MethodDescriptor<
            com.google.apps.events.subscriptions.v1.ListSubscriptionsRequest,
            com.google.apps.events.subscriptions.v1.ListSubscriptionsResponse>
        getListSubscriptionsMethod;
    if ((getListSubscriptionsMethod = SubscriptionsServiceGrpc.getListSubscriptionsMethod)
        == null) {
      synchronized (SubscriptionsServiceGrpc.class) {
        if ((getListSubscriptionsMethod = SubscriptionsServiceGrpc.getListSubscriptionsMethod)
            == null) {
          SubscriptionsServiceGrpc.getListSubscriptionsMethod =
              getListSubscriptionsMethod =
                  io.grpc.MethodDescriptor
                      .<com.google.apps.events.subscriptions.v1.ListSubscriptionsRequest,
                          com.google.apps.events.subscriptions.v1.ListSubscriptionsResponse>
                          newBuilder()
                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListSubscriptions"))
                      .setSampledToLocalTracing(true)
                      .setRequestMarshaller(
                          io.grpc.protobuf.ProtoUtils.marshaller(
                              com.google.apps.events.subscriptions.v1.ListSubscriptionsRequest
                                  .getDefaultInstance()))
                      .setResponseMarshaller(
                          io.grpc.protobuf.ProtoUtils.marshaller(
                              com.google.apps.events.subscriptions.v1.ListSubscriptionsResponse
                                  .getDefaultInstance()))
                      .setSchemaDescriptor(
                          new SubscriptionsServiceMethodDescriptorSupplier("ListSubscriptions"))
                      .build();
        }
      }
    }
    return getListSubscriptionsMethod;
  }
<pre>
A service that manages subscriptions to Google Workspace events.
</pre>
java-workspaceevents/grpc-google-cloud-workspaceevents-v1/src/main/java/com/google/apps/events/subscriptions/v1/SubscriptionsServiceGrpc.java