public function __construct(AuthenticatedNotificationHandlerInterface $handler, $perIteration, $offset = 0)
 {
     parent::__construct($handler, $perIteration, $offset);
 }
 public function __construct(AuthenticatedNotificationHandlerInterface $handler, ClientInterface $client, $perIteration, $offset = 0)
 {
     $this->client = $client;
     parent::__construct($handler, $perIteration, $offset);
 }