/**
  * Get a single variant group
  *
  * @param int $identifier
  *
  * @return JsonResponse
  */
 public function getAction($identifier)
 {
     $variantGroup = $this->variantGroupRepo->findOneByCode($identifier);
     if (!$variantGroup) {
         throw new NotFoundHttpException(sprintf('Variant group with code "%s" not found', $identifier));
     }
     return new JsonResponse($this->normalizer->normalize($variantGroup, 'internal_api', ['with_variant_group_values' => true]));
 }