 			mediator.onUnsubscribe.addCallback(unsubscribeMediator);
 			
 			mediator.onAdd.dispatch(mediator, this);
+			
+			return true;
 		}
 
 		

		 * 
		 * @param mediator
		 */
		public function addMediator(mediator:Mediator):void
		{
			if(!registerNotifier(mediator)) return;
			
			const subscriptions:Vector.<NotificationType> = mediator.listSubscriptions();
			const subscriptionsLength:int = subscriptions.length;

		 * 
		 * @param proxy Proxy instance to register
		 */
		public function addProxy(proxy:Proxy):Boolean
		{
			return registerNotifier(proxy);
		}

		
