code: def testDEFAULT(self):
      self.assertIs(DEFAULT, sentinel.DEFAULT)
  
file_path: cpython/Lib/test/test_unittest/testmock/testsentinel.py
imports: import unittest
  import copy
  import pickle
  from unittest.mock import sentinel, DEFAULT
label_desc: Use image node_id 3 for calling the SentinelTest obj's underlying member method code with example usage: obj.testDEFAULT() without return types