code: def tearDown(self):
      shutil.rmtree(self.tempdir)
  
imports: from __future__ import annotations
  import os
  import shutil
  import tempfile
  import unittest
  import numpy
  import torch.distributed
  from monai.data import PersistentDataset, json_hashing
  from monai.transforms import Transform
  from tests.utils import DistCall, DistTestCase
label_desc: Use image node_id 2 for calling the TestDistDataset obj's underlying member method code with example usage: obj.tearDown() without return types