code: def setUp(self):
      self.test_dir = tempfile.mkdtemp()
      sys.path.append(self.test_dir)
      self.package_dir = os.path.join(self.test_dir, self.package_name)
      os.mkdir(self.package_dir)
      create_empty_file(os.path.join(self.package_dir, "__init__.py"))
      self.module_path = os.path.join(self.package_dir, "foo.py")
  
file_path: cpython/Lib/test/test_importlib/test_pkg_import.py
imports: import os
  import sys
  import shutil
  import string
  import random
  import tempfile
  import unittest
  from importlib.util import cache_from_source
  from test.support.os_helper import create_empty_file
label_desc: Use image node_id 3 for calling the TestImport obj's underlying member method code with example usage: obj.setUp() without return types