docs: def similar_objects(self, num=None, **filters):
          """
          Find similar objects using related tags.
          """
          # TODO: filter appsettings.FLUENT_BLOGS_FILTER_SITE_ID:
          #    filters.setdefault('parent_site', self.parent_site_id)
  
          # FIXME: Using super() doesn't work, calling directly.
          return TagsMixin.similar_objects(self, num=num, **filters)