code: func NewBytesWatchPutResp(key string, value []byte, prevValue []byte, revision int64) *BytesWatchPutResp {
  	return &BytesWatchPutResp{key: key, value: value, prevValue: prevValue, rev: revision}
  }
docs: // NewBytesWatchPutResp creates an instance of BytesWatchPutResp.