code: def assertSourceIdentical(self, actual, expected):
      self.assertEqual(
          textwrap.dedent(actual).strip(),
          textwrap.dedent(expected).strip(),
      )
  
imports: import abc
  import collections
  import functools
  import imp
  import textwrap
  import unittest
  import six
  from nvidia.dali._autograph.pyct import inspect_utils
  from nvidia.dali._autograph.pyct.testing import basic_definitions
  from nvidia.dali._autograph.pyct.testing import decorators
label_desc: Use image node_id 6 for calling the InspectUtilsTest obj's underlying member method code with example usage: obj.assertSourceIdentical(actual, expected) without return types