public function addChildren(array $items): bool
    {
        if ($this->_item) {
            foreach ($items as $name) {
                $child = $this->manager->getPermission($name);
                if (empty($child) && $this->type == Item::TYPE_ROLE) {
                    $child = $this->manager->getRole($name);
                }
                $this->manager->addChild($this->_item, $child);
            }
        }

        return true;
    }