code: def setUp(self):
      self.test_dir = tempfile.mkdtemp()
      self.cwd = os.getcwd()
      os.chdir(self.test_dir)
  
file_path: keepsake/nodeps-test/test_nodeps.py
imports: import tempfile
  import shutil
  import os
  import unittest
  import keepsake
label_desc: Use image node_id 1 for calling the TestPythonNoDependencies obj's underlying member method code with example usage: obj.setUp() without return types