text: from flask_migrate import Migrate
  from os import environ
  from sys import exit
  
  from config import config_dict
  from app import create_app, db
  
  get_config_mode = environ.get('APP_CONFIG_MODE', 'Debug')
  try:
      config_mode = config_dict[get_config_mode.capitalize()]
  except KeyError:
      exit('Error: Invalid APP_CONFIG_MODE environment variable entry.')
  
  app = create_app(config_mode)
  Migrate(app, db)
  