message ResponseData {
  required uint32 error_no = 1;
  repeated .baidu.paddle_serving.predictor.lr.ResInstance results = 2 [idl_on = 1];
  optional .baidu.paddle_serving.predictor.lr.StatisticInfo statistic_info = 3;
  optional .baidu.rpc.ItpResponseHeader itp_response_header = 4;
}