Grav\Plugin\Admin\AdminTwigExtension::tuFilter PHP Method

    public function tuFilter()
    {
        $args = func_get_args();
        $numargs = count($args);
        $lang = null;
        if ($numargs == 3 && is_array($args[1]) || $numargs == 2 && !is_array($args[1])) {
            $lang = array_pop($args);
        } elseif ($numargs == 2 && is_array($args[1])) {
            $subs = array_pop($args);
            $args = array_merge($args, $subs);
        }
        return $this->grav['admin']->translate($args, $lang);
    }