class_docstr: Mixin to provide easy access to temp dir.
      
code: def id(self):
      return self.__class__.__name__
  
file_path: audiocraft/tests/common_utils/temp_utils.py
imports: import os
  import tempfile
label_desc: Use image node_id 3 for calling the TempDirMixin obj's underlying member method code with example usage: obj.id() and returns: self