code: def search_manga_series(self, query_string):
          
  
          result = self._manga_api.list_series()
          return [series for series in result \
              if series['locale']['enUS']['name'].lower().startswith(
                  query_string.lower())]
docs: Search the manga series list by name, case-insensitive
  
          @param str query_string
  
          @return list<crunchyroll.models.Series>