code: def tearDownClass(cls):
      super().tearDownClass()
      shutil.rmtree(cls._tmpdir)
  
imports: import logging
  import os
  import shutil
  import subprocess
  import sys
  import tempfile
  import unittest
  from typing import List
  import safetensors
  from accelerate.utils import write_basic_config
  from diffusers import DiffusionPipeline, UNet2DConditionModel
label_desc: Use image node_id 2 for calling the ExamplesTestsAccelerate obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types