title: Google App Engine Flexible - How can I list all files in the deployed application
body: <p>I am using Google App Engine Flexible and I intend to see all the files deployed for the current django application. How can I achieve this ?</p>
  
  <pre><code>runtime: python
  env: flex
  entrypoint: gunicorn -t 3600 -b :$PORT project_name.wsgi
  
  beta_settings:
    cloud_sql_instances: 'myapp:europe-west2:myapp'
  
  runtime_config:
    python_version: 3
  </code></pre>