code: def tearDown(self) -> None:
      self.patcher.stop()
  
file_path: ray/ci/ray_ci/test_base.py
imports: import os
  import unittest
  from unittest.mock import patch
  from ci.ray_ci.builder_container import PYTHON_VERSIONS
  from ci.ray_ci.builder import DEFAULT_PYTHON_VERSION
label_desc: Use image node_id 2 for calling the RayCITestBase obj's underlying member method code with example usage: obj.tearDown() without return types