code: def test_default_ignores(self):
      self.assertIn(".hg", filecmp.DEFAULT_IGNORES)
  
imports: import filecmp
  import os
  import shutil
  import tempfile
  import unittest
  from test import support
  from test.support import os_helper
label_desc: Use image node_id 3 for calling the DirCompareTestCase obj's underlying member method code with example usage: obj.test_default_ignores() without return types