code: def get_tags(self, view_object=None):
          
          tags = [force_unicode(self.bundle.get_title())]
          back_bundle = self.get_back_bundle()
          if back_bundle and back_bundle != self.bundle:
              tags.append(force_unicode(back_bundle.get_title()))
          if view_object:
              tags.append(force_unicode(view_object))
  
          return tags
docs: This method return a list of tags to use in the template
          :return: list of tags