code: def __init__(self):
      self.name = "Vgg16-conv1_1-4_3"
      self.source_md5 = {
          "mxnet": "52e75e03160e64e5aa9cfbbc62a92345",
          "coreml": "9c9508a8256d9ca1c113ac94bc9f8c6f",
      }
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import os
  import sys
  import requests
  import turicreate
  import hashlib
  from six.moves.urllib import parse
label_desc: Use image node_id 1 to create a new Vgg16 object  with example: obj = Vgg16()