class_docstr: Mixin to provide easy access to temp dir.
      
code: def tearDownClass(cls):
      if cls.temp_dir_ is not None:
          try:
              cls.temp_dir_.cleanup()
              cls.temp_dir_ = None
          except PermissionError:
              # On Windows there is a know issue with `shutil.rmtree`,
              # which fails intermittently.
              # https://github.com/python/cpython/issues/74168
              # Following the above thread, we ignore it.
              pass
      super().tearDownClass()
  
file_path: audiocraft/tests/common_utils/temp_utils.py
imports: import os
  import tempfile
label_desc: Use image node_id 2 for calling the TempDirMixin obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types