def _wasSuccessfulUUID(self, uuid):
        """
        Returns whether retrieving the player data was Successful

        :param uuid: The UUID of the player to check
        :return: True if the last time the player data retrieval from Mojang's API was successful, False otherwise
        :rtype: bool
        """
        clean_uuid = uuid.replace("-","")
        player = self._cache["Cache"].get(clean_uuid, {})
        return player.get("Successful", False)

        Returns whether retrieving the player data was Successful

        :param uuid: The UUID of the player to check
        :return: True if the last time the player data retrieval from Mojang's API was successful, False otherwise
        :rtype: bool
        
player_cache.py