Carbon_Fields\Container\Nav_Menu_Container::init PHP Method

    public function init($menu_id = 0, $render = true)
    {
        $this->set_menu_id($menu_id);
        $this->load();
        $this->_attach();
        if (!empty($menu_id) && $render === true) {
            $this->render();
        }
        return $this;
    }