old_contents: # pylint: disable=C1001
  class Config():
      CELERY_BROKER_URL = ''
      SQLALCHEMY_ECHO = False
      SECRET_KEY = ''
      TESTING = False
      DEBUG = False
  
  
  class ConfigDevelopment(Config):
      SQLALCHEMY_ECHO = True
      DEBUG = True
  
  
  class ConfigTesting(Config):
      SECRET_KEY = 'testing'  # noqa
      TESTING = True
  
  
  class ConfigProduction(Config):
      pass
  
new_contents: # pylint: disable=C1001
  class Config:
      CELERY_BROKER_URL = ''
      SQLALCHEMY_ECHO = False
      SECRET_KEY = ''
      TESTING = False
      DEBUG = True
  
  
  class ConfigDevelopment(Config):
      SQLALCHEMY_ECHO = True
  
  
  class ConfigTesting(Config):
      SECRET_KEY = 'testing'  # noqa
      TESTING = True
  
  
  class ConfigProduction(Config):
      DEBUG = False
  
subject: DEBUG = True for the Testing env