Deploying web app for Image Classification

Lesson 2.

i have trained an image classification model on Google Colab. I want to now create a web app for it using below mentioned steps in the link on render.
https://course.fast.ai/deployment_render.html#customize-the-app-for-your-model

I have uploaded export.pkl file on google drive but how do i find Server.py file to edit it on Colab? Any idea where can i find it?