code: def tearDownClass(cls):
      sys.path.remove(cls.site_dir)
  
imports: import os.path
  import sys
  import pathlib
  import unittest
  from importlib import import_module
  from importlib.readers import MultiplexedPath, NamespaceReader
label_desc: Use image node_id 2 for calling the NamespaceReaderTest obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types