code: def test_both(test_class, base=None, **kwargs):
      return split_frozen(test_class, base, **kwargs)
  
imports: import builtins
  import contextlib
  import errno
  import functools
  from importlib import machinery, util, invalidate_caches
  import marshal
  import os
  import os.path
  from test.support import import_helper
  from test.support import os_helper
  import unittest
  import sys
  import tempfile
  import types
label_desc: Use image node_id 5 for calling a global function with example usage: test_both(test_class, base) and returns: split_frozen