code: def update_example(wit_id, index, example):
      WitWidget.widgets[wit_id].update_example(index, example)
  
imports: import json
  import math
  import tensorflow
  from IPython import display
  from google.colab import output
  from witwidget.notebook import base
label_desc: Use image node_id 4 for calling a global function with example usage: update_example(wit_id, index, example) without return types