public Builder setResponse(JOutPiqi.callback_response value) {
        if (responseBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          response_ = value;
          onChanged();
        } else {
          responseBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000001;
        return this;
      }