Adapt managed service to create VMDiskProduct

uncloud_django_based/uncloud/uncloud_vm/views.py

@@ -89,7 +89,6 @@ class VMDiskProductViewSet(viewsets.ModelViewSet):
         if size_in_gb < serializer.validated_data['image'].size_in_gb:
             raise ValidationError(detail={ 'error_mesage': 'Size is smaller than original image' })
 
-
         serializer.save(owner=request.user, size_in_gb=size_in_gb)
         return Response(serializer.data)