old_contents: import sys
  
  try:
      from .credentials import *  # noqa
  except ImportError:
      sys.stdout.write('Can\'t find the file credentials.py. Hardcoded values are used.')
  
      MANGOPAY_CLIENT_ID = 'sdk-unit-tests'
      MANGOPAY_APIKEY = 'cqFfFrWfCcb7UadHNxx2C9Lo6Djw8ZduLi7J9USTmu8bhxxpju'
      MANGOPAY_API_URL = 'https://api.mangopay.com/v2.01/'
      MANGOPAY_API_SANDBOX_URL = 'https://api.sandbox.mangopay.com/v2.01/'
      MANGOPAY_USE_SANDBOX = True
      MANGOPAY_API_VERSION = 2
  
  xMOCK_TESTS_RESPONSES = False
  
new_contents: import sys
  
  try:
      from .credentials import *  # noqa
  except ImportError:
      sys.stdout.write('Can\'t find the file credentials.py. Hardcoded values are used.')
  
      MANGOPAY_CLIENT_ID = 'sdk-unit-tests'
      MANGOPAY_APIKEY = 'cqFfFrWfCcb7UadHNxx2C9Lo6Djw8ZduLi7J9USTmu8bhxxpju'
      MANGOPAY_API_URL = 'https://api.mangopay.com/v2.01/'
      MANGOPAY_API_SANDBOX_URL = 'https://api.sandbox.mangopay.com/v2.01/'
      MANGOPAY_USE_SANDBOX = True
      MANGOPAY_API_VERSION = 2
  
  MOCK_TESTS_RESPONSES = True
  
subject: revert 'settings' file