code: def test_iterdir(self):
      contents = {
          path.name for path in MultiplexedPath(self.folder).iterdir()
      }
      try:
          contents.remove("__pycache__")
      except (KeyError, ValueError):
          pass
      self.assertEqual(
          contents, {"binary.file", "utf-16.file", "utf-8.file"}
      )
  
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 4 for calling the MultiplexedPathTest obj's underlying member method code with example usage: obj.test_iterdir() without return types