public static function renderTemplate() {
        if (func_num_args() > 1 && is_array(func_get_arg(1))) {
            self::$raw = func_get_arg(1);
            self::$escapingTmp = func_get_arg(2);
            if (func_get_arg(2) !== null) {
                extract(self::escapeVariable(self::$raw, self::$escapingTmp));
            } else {
                extract(self::escapeVariable(self::$raw, self::$escaping));
            }
        }
        ob_start();
        include func_get_arg(0);
        $content = ob_get_contents();
        ob_end_clean();

        return $content;
    }