code: def handle_request(self, request, app, model, pk):
          
          ModelClass = self.get_model_class()
          object = ModelClass.objects.get(id=pk)
  
          tab_code = request.GET.get('tab')
          model_alias = request.GET.get('model_alias')
          model_alias = model_alias if model_alias else '{}.{}'.format(app, model)
  
          # TODO permission check
  
          item = tabs.get_tab(model_alias, object, tab_code)
  
          return item.get_layout(object).render(request)
docs: Render and return tab