new_contents: from flask import Flask
  from flask import Response
  flask_app = Flask('flaskapp')
  
  @flask_app.route('/hello')
  def hello_world():
    return Response(
            'Hello world from Flask!\n', 
            mimetype='text/plain'
    )
  
  app = flask_app.wsgi_app
  
subject: Add configuration for Flask 'hello world' app