code: def create_view(self, request):
          
          kwargs = {'model_admin': self}
          view_class = self.create_view_class
          return view_class.as_view(**kwargs)(request)
docs: Instantiates a class-based view to provide 'creation' functionality for
          the assigned model, or redirect to Wagtail's create view if the
          assigned model extends 'Page'. The view class used can be overridden by
          changing the 'create_view_class' attribute.