private static function extendTwig (\Twig_Environment $twig_Environment)
    {
        $twig_Environment->addFilter(new \Twig_SimpleFilter('__', function ($text, $domain = 'default') {
            return __($text, $domain);
        }));
        $twig_Environment->addExtension(new SlugifyExtension(Slugify::create()));
    }