code: def training_loop(self) -> None:
      raise _TestSpecificError("There is an error in trainer!")
  
imports: import gc
  import threading
  import time
  from tempfile import TemporaryDirectory
  import pytest
  import ray
  from ray import train, tune
  from ray._private.test_utils import wait_for_condition
  from ray._raylet import GcsClient
  from ray.cluster_utils import Cluster
  from ray.core.generated import autoscaler_pb2
  from ray.train import Checkpoint, FailureConfig, RunConfig, ScalingConfig
  from ray.train.data_parallel_trainer import DataParallelTrainer
  from ray.train.trainer import BaseTrainer, TrainingFailedError
  from ray.tune import Tuner, TuneConfig, TuneError
  from ray.tests.conftest import *
  from ray.train.tests.util import create_dict_checkpoint, load_dict_checkpoint
label_desc: Use image node_id 1 for calling the FailingTrainer obj's underlying member method code with example usage: obj.training_loop() without return types