code: def test_dali_pickling():
      for i, test in enumerate(tests_dali_pickling, start=1):
          yield test, "{}. {}".format(i, test.__name__.strip("_")), None
  
imports: import copyreg
  import numpy
  import nvidia.dali.fn
  import nvidia.dali.pickling
  import os
  from nvidia.dali import pipeline_def
  from pickle import PicklingError
  from nose_utils import raises
  from test_utils import get_dali_extra_path, restrict_python_version
label_desc: Use image node_id 46 for calling a global function with example usage: test_dali_pickling() without return types