memberOfGroup method
      
dynamic
memberOfGroup()
      
     
    
    
Implementation
memberOfGroup() {
  if (profile.isGroupProfile ?? false) {
    Mirrorfly.isMemberOfGroup(profile.jid.checkNull(), null)
        .then((bool? value) {
      if (value != null) {
        _isMemberOfGroup(value);
      }
    });
  }
}