code: def define_graph(self):
      self.jpegs, self.labels = self.input(name="Reader")
      images = self.decode(self.jpegs)
      if self.use_input:
          self.transform = self.transform_source()
          outputs = self.warp(images, self.transform)
      else:
          outputs = self.warp(images)
      return outputs
  
imports: import nose_utils
  from nvidia.dali.pipeline import Pipeline
  import nvidia.dali.ops
  import nvidia.dali.fn
  import nvidia.dali.types
  import numpy
  import math
  import os
  import cv2
  from sequences_test_utils import video_suite_helper, SampleDesc, ArgCb
  from test_utils import compare_pipelines
  import random
label_desc: Use image node_id 2 for calling the CVPipeline obj's underlying member method code with example usage: obj.define_graph() and returns: outputs