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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 get_merged_filter(self):
 """ Return merged filter from list of handlers :return: merged filter :rtype: :class:`~responsebot.models.TweetFilter` """

        track = set()
        follow = set()

        for handler in self.handlers:
            track.update(handler.filter.track)
            follow.update(handler.filter.follow)

        return TweetFilter(track=list(track), follow=list(follow))