default void shutdown(com.google.protobuf.Empty request,
        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getShutdownMethod(), responseObserver);
    }
default void shutdown(com.google.protobuf.Empty request,
        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver)