Brunet.Messaging.ReqrepManager.RequestState.AddAck C# (CSharp) Метод

     public bool AddAck(ISender acksender) {
       if( _ackers == null ) {
         _ackers = new ArrayList();
         _ackers.Add(acksender);
         return true;
       }
       else if( false == _ackers.Contains(acksender) ) {
         _ackers.Add(acksender);
         return true;
       }
       else {
         return false;
       }
     }
     /** Add to the set of repliers