_list_objects(self):         """         0. Create object         0. Evict object         0. Prefetch object         0. Check cached         :return:         """         object_name, _ = self.__put_random_object()         input_params = self.models.InputParameters(self.models.Actions.EVICTOBJECTS)         log.info("Evict object list [%s/%s] InputParameters [%s]", self.BUCKET_NAME, object_name, input_params)         self.object.delete(self.BUCKET_NAME, object_name, input_parameters=input_params)         input_params.action = self.models.Actions.PREFETCH         input_params.value = self.models.ListParameters(wait=True, objnames=[object_name])         log.info("Prefetch object list [%s/%s] InputParameters [%s]", self.BUCKET_NAME, object_name, input_params)         self.bucket.perform_operation(self.BUCKET_NAME, input_params, provider="cloud")         log.info("