public override void StreamDestroyed(OTPublisher publisher, OTStream stream)
 {
     InvokeOnMainThread(() => {
         _this.CleanupSubscriber();
         _this.CleanupPublisher();
     });
 }
            public override void ConnectionDestroyed(OTSession session, OTConnection connection)
            {
                Debug.WriteLine("SessionDelegate:ConnectionDestroyed: " + connection.ConnectionId);

                InvokeOnMainThread(() => _this.CleanupSubscriber());
            }