docs: function hasMessageIdentifier(msgState) {
    const md5s = msgState.md5s;
    return isNotBlank(msgState.eventID) || // isNotBlank(msgState.eventSeqNo) || isNotBlank(msgState.eventSubSeqNo) ||
      (msgState.idVals && msgState.idVals.some(isNotBlank)) ||
      ((msgState.keyVals && msgState.keyVals.some(isNotBlank)) &&
        (msgState.seqNoVals && msgState.seqNoVals.some(isNotBlank))) ||
      (md5s && (isNotBlank(md5s.msg) || isNotBlank(md5s.userRec) || isNotBlank(md5s.rec) || isNotBlank(md5s.data)));
  }