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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 stop_Note(self, note, channel=1):
 """Stop a note on a channel. If Note.channel is set, it will take presedence over the channel argument given here. """

        if hasattr(note, 'channel'):
            channel = note.channel
        self.stop_event(int(note) + 12, int(channel))
        self.notify_listeners(self.MSG_STOP_INT, {'channel': int(channel),
            'note': int(note) + 12})
        self.notify_listeners(self.MSG_STOP_NOTE, {'channel': int(channel),
            'note': note})
        return True