docs: def is_subscribed_list(self, list_id, user_id):
          """
          Check if user is a subscribed of specified list
  
          :param list_id: list ID number
          :param user_id: user ID number
          :return: :code:`True` if user is subscribed of list, :code:`False` otherwise
          """
          try:
              return bool(self._client.show_list_subscriber(list_id=list_id, user_id=user_id))
          except TweepError as e:
              if e.api_code == TWITTER_USER_IS_NOT_LIST_MEMBER_SUBSCRIBER:
                  return False
              raise