src/ClassAliaser.php
public static function unregister()
    {
        if (isset(self::$autoloadFn)) {
            spl_autoload_unregister(self::$autoloadFn);
            self::$autoloadFn = null;
        }

        self::$aliases = [];
    }
public static function unregister()
    {
        if (isset(self::$autoloadFn)) {
            spl_autoload_unregister(self::$autoloadFn);
            self::$autoloadFn = null;
        }

        self::$aliases = [];
    }
Unregisters the aliases and class autoloading function