Todaymade\Daux\Tree\Directory::getIndexPage PHP Метод

    public function getIndexPage()
    {
        $index_key = $this->getConfig()['index_key'];
        if (isset($this->children[$index_key])) {
            return $this->children[$index_key];
        }
        if ($this->getConfig()->shouldInheritIndex() && ($first_page = $this->seekFirstPage())) {
            return $first_page;
        }
        return null;
    }