code: def preprocess(self, image_path):
      self.data = super(TestCNTK, self).preprocess(image_path)
  
file_path: MMdnn/mmdnn/conversion/examples/cntk/imagenet_test.py
imports: import argparse
  import numpy
  import sys
  import os
  import cntk
  from mmdnn.conversion.examples.imagenet_test import TestKit
label_desc: Use image node_id 2 for calling the TestCNTK obj's underlying member method code with example usage: obj.preprocess(image_path) without return types