Get the amount of time a specific item will remain in the database.

        :param str item: The item to get the TTL for
        :return: Time in seconds. Returns None for a non-existing element.
        :rtype: int

def __get_ttl(self, item: str) -> int:
        """
        Get the amount of time a specific item will remain in the database.

        :param str item: The item to get the TTL for
        :return: Time in seconds. Returns None for a non-existing element.
        :rtype: int
        """
        connection = self.__get_connection()
        ttl = connection.ttl(item)
        BlackRed.__release_connection(connection)
        return ttl