old_contents: from django.db import models
  from wagtail.wagtailcore.fields import RichTextField
  from longclaw.longclawproducts.models import ProductVariantBase
  
  class ProductVariant(ProductVariantBase):
  
      # Enter your custom product variant fields here
      # e.g. colour, size, stock and so on.
      # Remember, ProductVariantBase provides 'price', 'ref', 'slug' fields
      # and the parental key to the Product model.
      description = RichTextField()
      stock = models.IntegerField(default=0)
  
new_contents: from django.db import models
  from wagtail.wagtailcore.fields import RichTextField
  from longclaw.longclawproducts.models import ProductVariantBase
  
  class ProductVariant(ProductVariantBase):
  
      # Enter your custom product variant fields here
      # e.g. colour, size, stock and so on.
      # Remember, ProductVariantBase provides 'price', 'ref', 'slug' fields
      # and the parental key to the Product model.
      description = RichTextField()
  
subject: Remove 'stock' field from test models