old_contents: from const import basedir
  import os
  
  ATTRIBUTE_AUTHORITY_URL = 'http://localhost:8095'
  KEY_EXCHANGE_URL = 'http://localhost:5001'
  
  CONTAINER_EXTENSION = '.media'
  ALL_ATTRIBUTE = 'All'
  
  # already registered at the KEX
  # used to authenticate UM/CM against KEX
  UMCM_CLIENT_ID = 'QlWDSSGCCUFdD9Nupq3vA6Q7C95IQf2LjCqwBh10'
  UMCM_CLIENT_SECRET = '0Bh761e9WKEPkuyxPRMChey0d2m1uVkvDn20WyDum0Bb7TGUtt'
  
  # Policy Mode
  # Normal ABE mode   :   0
  # No re-encryption  :   1
  # No key update     :   2
  POLICY_MODE = 0
  
  DEBUG = True
  TESTING = False
  SECRET_KEY = 'w\x7f\x1b\x94}S\x98\x0e\x97\xa7\xdd\xae\xe5\xcd 4\xd3\n\xfeG\xacT\xa2\xdf\xfd\xec\xbf:|N\\"'
  SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, 'entrance.dev.db')
  SQLALCHEMY_TRACK_MODIFICATIONS = False
  
  USER_APP_NAME = 'entrance'
  USER_AFTER_LOGIN_ENDPOINT = 'at.index'
  CSRF_ENABLED = False
  
  MAIL_USERNAME = 'entrance.project.tu@gmail.com'
  MAIL_PASSWORD = 'GUb78EpuJOHS8vUvvI8kkECG'
  MAIL_DEFAULT_SENDER = 'entrance.project.tu@gmail.com'
  MAIL_SERVER = 'smtp.gmail.com'
  MAIL_PORT = 465
  MAIL_USE_SSL = True
  MAIL_USE_TLS = False
  
  OAUTH2_PROVIDER_TOKEN_EXPIRES_IN = 31536000
  
new_contents: from const import basedir
  import os
  
  ATTRIBUTE_AUTHORITY_URL = 'http://localhost:8095'
  KEY_EXCHANGE_URL = 'http://localhost:5001'
  
  CONTAINER_EXTENSION = '.media'
  ALL_ATTRIBUTE = 'All'
  
  # already registered at the KEX
  # used to authenticate UM/CM against KEX
  UMCM_CLIENT_ID = 'QlWDSSGCCUFdD9Nupq3vA6Q7C95IQf2LjCqwBh10'
  UMCM_CLIENT_SECRET = '0Bh761e9WKEPkuyxPRMChey0d2m1uVkvDn20WyDum0Bb7TGUtt'
  
  # Policy Mode
  # Normal ABE mode   :   0
  # No re-encryption  :   1
  # No key update     :   2
  POLICY_MODE = 0
  
  DEBUG = True
  TESTING = False
  SECRET_KEY = 'w\x7f\x1b\x94}S\x98\x0e\x97\xa7\xdd\xae\xe5\xcd 4\xd3\n\xfeG\xacT\xa2\xdf\xfd\xec\xbf:|N\\"'
  SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, 'entrance.dev.db')
  SQLALCHEMY_TRACK_MODIFICATIONS = False
  
  USER_APP_NAME = 'entrance'
  USER_AFTER_LOGIN_ENDPOINT = 'at.index'
  CSRF_ENABLED = False
  
  MAIL_USERNAME = 'some-username'
  MAIL_PASSWORD = 'passwd'
  MAIL_DEFAULT_SENDER = 'sender@dashbaord.zz'
  MAIL_SERVER = 'smtp.gmail.com'
  MAIL_PORT = 465
  MAIL_USE_SSL = True
  MAIL_USE_TLS = False
  
  OAUTH2_PROVIDER_TOKEN_EXPIRES_IN = 31536000
  
subject: Update default.py