code: def test_python_operator_error():
      daliop = dali_tf.DALIIterator()
      pipe = PythonOperatorPipeline()
      with tf.device("/cpu:0"):
          _ = daliop(
              pipeline=pipe,
              shapes=[(1, 3, 3, 3)],
              dtypes=[tf.float32],
              device_id=0,
          )
  
imports: import numpy
  import nvidia.dali.ops
  import nvidia.dali.plugin.tf
  import nvidia.dali.types
  import os.path
  import tensorflow
  from nvidia.dali.pipeline import Pipeline
  from nose_utils import raises
  from test_utils import get_dali_extra_path
label_desc: Use image node_id 3 for calling a global function with example usage: test_python_operator_error() without return types