code: def check_slice_perms(self, slice_id):
      
      form_data, slc = get_form_data(slice_id, use_slice_data=True)
      datasource_type = slc.datasource.type
      datasource_id = slc.datasource.id
      viz_obj = get_viz(
          datasource_type=datasource_type,
          datasource_id=datasource_id,
          form_data=form_data,
          force=False,
      )
      security_manager.assert_datasource_permission(viz_obj.datasource)
docs: Check if user can access a cached response from slice_json.
  
      This function takes `self` since it must have the same signature as the
      the decorated method.