code: def test_SortKey_enum(self):
      self.assertEqual(SortKey.FILENAME, "filename")
      self.assertNotEqual(SortKey.FILENAME, SortKey.CALLS)
  
imports: import unittest
  from test import support
  from io import StringIO
  from pstats import SortKey
  from enum import StrEnum, _test_simple_enum
  import os
  import pstats
  import tempfile
  import cProfile
label_desc: Use image node_id 12 for calling the StatsTestCase obj's underlying member method code with example usage: obj.test_SortKey_enum() without return types