code: def test_dict_mixed_keys_items(self):
      d = {(1, 1): 11, (2, 2): 22}
      e = {1: 1, 2: 2}
      self.assertEqual(d.keys(), e.items())
      self.assertNotEqual(d.items(), e.keys())
  
imports: import collections.abc
  import copy
  import pickle
  import unittest
  from test.support import Py_C_RECURSION_LIMIT
label_desc: Use image node_id 4 for calling the DictSetTest obj's underlying member method code with example usage: obj.test_dict_mixed_keys_items() without return types