code: def tearDown(self):
      shutil.rmtree(self.logdir)
  
imports: import json
  import os
  import sys
  import shutil
  import tempfile
  import unittest
  import ray
  from ray.air.constants import TRAINING_ITERATION
  from ray.rllib import _register_all
  import ray.train
  from ray import tune
  from ray.train import Checkpoint, CheckpointConfig
  from ray.tune.logger import NoopLogger
  from ray.tune.execution.placement_groups import PlacementGroupFactory
  from ray.tune.trainable import with_parameters, wrap_function
  from ray.tune.result import DEFAULT_METRIC
  from ray.tune.schedulers import ResourceChangingScheduler
  from ray.train.tests.util import mock_storage_context
label_desc: Use image node_id 3 for calling the FunctionCheckpointingTest obj's underlying member method code with example usage: obj.tearDown() without return types