toLogString method
Implementation
String toLogString() {
  String res = "userID:$userID|timestamp:$timestamp|groupID:$groupID|msgID:$msgID|readCount:$readCount|unreadCount:$unreadCount|isPeerRead:$isPeerRead";
  return res;
}String toLogString() {
  String res = "userID:$userID|timestamp:$timestamp|groupID:$groupID|msgID:$msgID|readCount:$readCount|unreadCount:$unreadCount|isPeerRead:$isPeerRead";
  return res;
}