code: def create_pipeline(backend, *args):
      if backend == "cv":
          return CVPipeline(*args)
      else:
          return RotatePipeline(backend, *args)
  
imports: import cv2
  import numpy
  import math
  import os
  import random
  from nvidia.dali.pipeline import Pipeline
  import nvidia.dali.ops
  import nvidia.dali.types
  import nvidia.dali
  from test_utils import compare_pipelines
  from sequences_test_utils import ArgData, ArgDesc, ArgCb, ParamsProvider, get_video_input_cases, sequence_suite_helper
label_desc: Use image node_id 8 for calling a global function with example usage: create_pipeline(backend) and returns: CVPipeline, RotatePipeline