code: def test_methods(self):
      weaksetmethods = dir(WeakSet)
      for method in dir(set):
          if method.startswith("_"):
              continue
          self.assertIn(
              method, weaksetmethods, "WeakSet missing method " + method
          )
  
imports: import unittest
  from weakref import WeakSet
  import copy
  import string
  from collections import UserString
  from collections.abc import Set, MutableSet
  import gc
  import contextlib
  from test import support
label_desc: Use image node_id 2 for calling the TestWeakSet obj's underlying member method code with example usage: obj.test_methods() without return types