message: uncommented response parameter
diff: @@ -170,7 +170,7 @@ public:
  grpc::Status SetTakeoffAltitude(
  grpc::ServerContext* /* context */,
  const rpc::action::SetTakeoffAltitudeRequest* request,
  - rpc::action::SetTakeoffAltitudeResponse* /* response */) override
  + rpc::action::SetTakeoffAltitudeResponse* response) override
  {
  if (request != nullptr) {
  const auto requested_altitude = request->altitude();
  