old_contents: import os
  
  class Config(object):
      DEBUG=False
      TITLE_API_URL = os.environ.get('TITLE_API_URL')
      SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL')
  
  class DevelopmentConfig(Config):
      DEBUG=True
  
new_contents: import os
  
  class Config(object):
      DEBUG = False
      TITLE_API_URL = os.environ.get('TITLE_API_URL')
      SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL')
  
  class DevelopmentConfig(Config):
      DEBUG = True
  
  class TestConfig(DevelopmentConfig):
      TESTING = True
  
subject: Clean up config