code: def test_step_video_pipeline():
      pipe = VideoPipe(batch_size=BATCH_SIZE, data=VIDEO_FILES, step=1)
      pipe.build()
      for i in range(ITER):
          print("Iter " + str(i))
          _ = pipe.run()
      del pipe
  
imports: import os
  import math
  from test_utils import get_gpu_num
  from test_utils import get_dali_extra_path
  import nvidia.dali.ops
  import nvidia.dali.types
  from nvidia.dali.pipeline import Pipeline, pipeline_def
  import nvidia.dali.fn
  import numpy
  import tempfile
  from test_utils import check_output_pattern
  from nose_utils import assert_raises, raises
label_desc: Use image node_id 17 for calling a global function with example usage: test_step_video_pipeline() without return types