code: def explore_genres(self, parent_genre_id=None):
  		
  
  		response = self._call(
  			mc_calls.ExploreGenres,
  			parent_genre_id
  		)
  		genre_list = response.body.get('genres', [])
  
  		return genre_list
docs: Get a listing of song genres.
  
  		Parameters:
  			parent_genre_id (str, Optional): A genre ID.
  				If given, a listing of this genre's sub-genres is returned.
  
  		Returns:
  			list: Genre dicts.