Lumberjack\Core\Site::addToTwig PHP 메소드

    public function addToTwig($twig)
    {
        // this is where you can add your own functions to twig
        // $twig->addExtension(new Twig_Extension_StringLoader());
        // $twig->addFilter('myfoo', new Twig_Filter_Function('myfoo'));
        return $twig;
    }