public Builder mergeRecipient(JOutPiqi.recipient value) {
        if (recipientBuilder_ == null) {
          if (((bitField0_ & 0x00000001) == 0x00000001) &&
              recipient_ != JOutPiqi.recipient.getDefaultInstance()) {
            recipient_ =
              JOutPiqi.recipient.newBuilder(recipient_).mergeFrom(value).buildPartial();
          } else {
            recipient_ = value;
          }
          onChanged();
        } else {
          recipientBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000001;
        return this;
      }