code: def tearDown(self):
      os.chdir(self.cwd)
  
file_path: auto-sklearn/test/test_metalearning/pyMetaLearn/test_meta_base.py
imports: import logging
  import os
  import pandas
  import autosklearn.pipeline.classification
  from autosklearn.metalearning.metalearning.meta_base import MetaBase
  import unittest
label_desc: Use image node_id 2 for calling the MetaBaseTest obj's underlying member method code with example usage: obj.tearDown() without return types