code: def tearDown(self):
      self.temp_dir_obj.cleanup()
  
imports: import os
  from tempfile import TemporaryDirectory
  from unittest import TestCase
  import torch
  from torch import nn
  from poutyne import Experiment
  from tests.framework.experiment.utils import ConstantMetric, ConstantMetricCallback
  from tests.framework.tools import SomeDataGeneratorWithLen
label_desc: Use image node_id 2 for calling the BaseExperimentCheckpointLoadingTest obj's underlying member method code with example usage: obj.tearDown() without return types