Everzet\PersistedObjects\FileRepository::save PHP Метод

    public function save($object)
    {
        $id = $this->stringify($this->getIdentity($object));
        $db = $this->loadDb();
        $db[$id] = $object;
        $this->saveDb($db);
    }

 public function add(User $user)
 {
     $this->file->save($user);
 }