How do you add event listeners in mxml components. Now AS3 components?

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* addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
* removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
* dispatchEvent(event:Event):Boolean
* hasEventListener(type:String):Boolean
* willTrigger(type:String):Boolean
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