code: def tearDown(self):
      self.temp_dir_obj.cleanup()
  
file_path: poutyne/tests/framework/callbacks/test_optimizer_checkpoint.py
imports: import os
  import unittest
  from tempfile import TemporaryDirectory
  from unittest import TestCase
  import torch
  import torch.nn
  from poutyne import Model, OptimizerCheckpoint, torch_to_numpy
  from tests.framework.tools import some_data_generator
label_desc: Use image node_id 2 for calling the OptimizerCheckpointTest obj's underlying member method code with example usage: obj.tearDown() without return types