      name = 'django.contrib.contenttypes'
      verbose_name = _("Content Types")
  
      def ready(self):
          checks.register('models')(check_generic_foreign_keys)
 
</s> remove         checks.register('models')(check_user_model)
 </s> add         checks.register(checks.Tags.models)(check_user_model) </s> remove         checks.register('admin')(check_admin_app)
 </s> add         checks.register(checks.Tags.admin)(check_admin_app) </s> remove @register('compatibility')
 </s> add @register(Tags.compatibility) </s> remove from . import Error, register
 </s> add from . import Error, Tags, register
        checks.register(checks.Tags.models)(check_generic_foreign_keys)
      name = 'django.contrib.contenttypes'
      verbose_name = _("Content Types")
  
      def ready(self):
        checks.register(checks.Tags.models)(check_generic_foreign_keys)
keep keep keep keep replace
 Fixed #22195 -- Used constants to define built-in tags for check framework.

Thanks Elvard for the patch. 
django/contrib/contenttypes/apps.py