public function __construct(ContentGateway $contentGateway, Registry $converterRegistry, StorageHandler $storageHandler, ContentMapper $contentMapper)
{
$this->contentGateway = $contentGateway;
$this->converterRegistry = $converterRegistry;
$this->storageHandler = $storageHandler;
$this->storageHandler = $storageHandler;
$this->contentMapper = $contentMapper;
}