code: def get_stoplists():
      
      path_to_stoplists = os.path.dirname(sys.modules["justext"].__file__)
      path_to_stoplists = os.path.join(path_to_stoplists, "stoplists")
  
      stoplist_names = []
      for filename in os.listdir(path_to_stoplists):
          name, extension = os.path.splitext(filename)
          if extension == ".txt":
              stoplist_names.append(name)
  
      return frozenset(stoplist_names)
docs: Returns a collection of built-in stop-lists.