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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 list_timeline(self, list_id, since_id=None, max_id=None, count=20):
 """ List the tweets of specified list. :param list_id: list ID number :param since_id: results will have ID greater than specified ID (more recent than) :param max_id: results will have ID less than specified ID (older than) :param count: number of results per page :return: list of :class:`~responsebot.models.Tweet` objects """

        statuses = self._client.list_timeline(list_id=list_id, since_id=since_id, max_id=max_id, count=count)
        return [Tweet(tweet._json) for tweet in statuses]