old_contents: from flask import Flask
  
  app = Flask(__name__)
  app.config.from_object('config')
  from app import views
new_contents: from flask import Flask
  import os
  
  app = Flask(__name__)
  app.config.from_object('config')
  app.config.update(CSRF_ENABLED = os.environ['CSRF_ENABLED'])
  app.config.update(SECRET_KEY = os.environ['SECRET_KEY'])
  app.config.update(CLIENT_ID = os.environ['CLIENT_ID'])
  app.config.update(CLIENT_SECRET = os.environ['CLIENT_SECRET'])
  from app import views
  
subject: Update __init__.py