code: def _test_named_args(self, key, sub_key):
      with CreateKeyEx(
          key=key, sub_key=sub_key, reserved=0, access=KEY_ALL_ACCESS
      ) as ckey:
          self.assertTrue(ckey.handle != 0)
  
      with OpenKeyEx(
          key=key, sub_key=sub_key, reserved=0, access=KEY_ALL_ACCESS
      ) as okey:
          self.assertTrue(okey.handle != 0)
  
imports: import gc
  import os, sys, errno
  import threading
  import unittest
  from platform import machine, win32_edition
  from test.support import cpython_only, import_helper
  from winreg import *
label_desc: Use image node_id 7 for calling the BaseWinregTests obj's underlying member method code with example usage: obj._test_named_args(key, sub_key) without return types