code: def get_watchlist_ttl(self, item: str) -> int:
          
          assert item is not None
          item = self._encode_item(item)
          return self.__get_ttl(self.__redis_conf['watchlist_template'].format(item))
docs: Get the amount of time a specific item will remain on the watchlist.
  
          :param str item: The item to get the TTL for on the watchlist
          :return: Time in seconds. Returns None for a non-existing element
          :rtype: int