public Builder setStartTimer(
          JOutPiqi.timer.Builder builderForValue) {
        if (startTimerBuilder_ == null) {
          startTimer_ = builderForValue.build();
          onChanged();
        } else {
          startTimerBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000002;
        return this;
      }