public function __construct($config = null, ServiceManager $serviceManager)
 {
     $this->serviceManager = $serviceManager;
     $config = $config ? $config : $this->getDefaultPages();
     parent::__construct($config);
 }
 public function __construct($config = null)
 {
     $config = $config ? $config : $this->getDefaultPages();
     parent::__construct($config);
 }