Cockpit\Helper\Admin::menu PHP Method

    public function menu($key, $def = null, $prio = 5)
    {
        $lst = isset($this->app["admin.menu.{$key}"]) ? $this->app["admin.menu.{$key}"] : null;
        if ($lst && $def) {
            $lst->insert(array_merge(["url" => "", "label" => "", "title" => "", "children" => new \ArrayObject([])], $def), (int) $prio);
        }
        return $lst;
    }