public Builder mergeReplyMessage(protocols.ChatProtocol.ReplyMessage value) {
        if (replyMessageBuilder_ == null) {
          if (((bitField0_ & 0x00000020) == 0x00000020) &&
              replyMessage_ != protocols.ChatProtocol.ReplyMessage.getDefaultInstance()) {
            replyMessage_ =
              protocols.ChatProtocol.ReplyMessage.newBuilder(replyMessage_).mergeFrom(value).buildPartial();
          } else {
            replyMessage_ = value;
          }
          onChanged();
        } else {
          replyMessageBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000020;
        return this;
      }