 		 * 
 		 * @param proxy Proxy to remove
 		 */
-		public function removeProxy(proxy:Proxy):void
-		{
-			unregisterNotifier(proxy);
+		public function removeProxy(proxy:Proxy):Boolean
+		{
+			return unregisterNotifier(proxy);
 		}
 
 		

			mediator.onSubscribe.removeCallback(subscribeMediator);
			
			mediator.onRemove.dispatch(mediator, this);
		}

		

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