FluentDOM::setLoader PHP Method

    public static function setLoader($loader)
    {
        if ($loader instanceof \FluentDOM\Loadable) {
            self::$_loader = $loader;
        } elseif (NULL === $loader) {
            self::$_loader = NULL;
        } else {
            throw new \FluentDOM\Exceptions\InvalidArgument('loader', ['FluentDOM\\Loadable']);
        }
    }