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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def addEventListener(self, event: str, listener: _EventListenerType ) -> None: """Add event listener to this node. ``event`` is a string which determines the event type when the new listener called. Acceptable events are same as JavaScript, without ``on``. For example, to add a listener which is called when this node is clicked, event is ``'click``. """

        self._add_event_listener(event, listener)