library/Rediska/Autoloader.php
public static function unregister()
    {
        if (!self::isRegistered()) {
            return false;
        }

        self::$_isRegistered = !spl_autoload_unregister(self::$_callback);

        return self::$_isRegistered;
    }
public static function unregister()
    {
        if (!self::isRegistered()) {
            return false;
        }

        self::$_isRegistered = !spl_autoload_unregister(self::$_callback);

        return self::$_isRegistered;
    }
Unregister Rediska autoload

@return boolean