public MucAffContact(Jid jid, Affiliation affiliation, MucAffContacts mucAffContacts)
 {
     _mucAffContacts = mucAffContacts;
     _item = new Item(affiliation);
     _item.Jid = jid;
 }
 public MucAffContact(Item item, MucAffContacts mucAffContacts)
 {
     _item = item;
     _mucAffContacts = mucAffContacts;
 }