public function duplicate(ItemTypeInterface $original)
{
/** @var PicturePicture $data */
/** @var PicturePicture $original */
$data = new $this->dataClass();
$data->setTitle($original->getTitle());
$data->setCaptionLeft($original->getCaptionLeft());
$data->setCaptionRight($original->getCaptionRight());
$newFile = $this->getFileFactory()->duplicate($original->getFileLeft());
$data->setFileLeft($newFile);
$newFile = $this->getFileFactory()->duplicate($original->getFileRight());
$data->setFileRight($newFile);
return $data;
}