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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 top_charts_for_genre(self, genre_id):
 		"""Get a listing of top charts for a top chart genre. 		Parameters: 			genre_id (str):
 A top chart genre ID as found with :meth:`top_charts_genres`. 		"""


		response = self._call(mc_calls.BrowseTopChartForGenre, genre_id)
		top_chart_for_genre = response.body

		return top_chart_for_genre