old_contents: from django.conf import settings
  
  # TODO: these should not be module level.
  WATCHMAN_ENABLE_PAID_CHECKS = getattr(settings, 'WATCHMAN_ENABLE_PAID_CHECKS', False)
  WATCHMAN_AUTH_DECORATOR = getattr(settings, 'WATCHMAN_AUTH_DECORATOR', 'watchman.decorators.token_required')
  WATCHMAN_TOKEN = getattr(settings, 'WATCHMAN_TOKEN', None)
  WATCHMAN_TOKEN_NAME = getattr(settings, 'WATCHMAN_TOKEN_NAME', 'watchman-token')
  WATCHMAN_ERROR_CODE = getattr(settings, 'WATCHMAN_ERROR_CODE', 500)
  WATCHMAN_EMAIL_RECIPIENTS = getattr(settings, 'WATCHMAN_EMAIL_RECIPIENTS', ['to@example.com'])
  WATCHMAN_EMAIL_HEADERS = getattr(settings, 'WATCHMAN_EMAIL_HEADERS', {})
  
  DEFAULT_CHECKS = (
      'watchman.checks.caches',
      'watchman.checks.databases',
      'watchman.checks.storage',
  )
  PAID_CHECKS = (
      'watchman.checks.email',
  )
  
  if WATCHMAN_ENABLE_PAID_CHECKS:
      DEFAULT_CHECKS = DEFAULT_CHECKS + PAID_CHECKS
  
  WATCHMAN_CHECKS = getattr(settings, 'WATCHMAN_CHECKS', DEFAULT_CHECKS)
  
new_contents: from django.conf import settings
  
  # TODO: these should not be module level (https://github.com/mwarkentin/django-watchman/issues/13)
  WATCHMAN_ENABLE_PAID_CHECKS = getattr(settings, 'WATCHMAN_ENABLE_PAID_CHECKS', False)
  WATCHMAN_AUTH_DECORATOR = getattr(settings, 'WATCHMAN_AUTH_DECORATOR', 'watchman.decorators.token_required')
  WATCHMAN_TOKEN = getattr(settings, 'WATCHMAN_TOKEN', None)
  WATCHMAN_TOKEN_NAME = getattr(settings, 'WATCHMAN_TOKEN_NAME', 'watchman-token')
  WATCHMAN_ERROR_CODE = getattr(settings, 'WATCHMAN_ERROR_CODE', 500)
  WATCHMAN_EMAIL_RECIPIENTS = getattr(settings, 'WATCHMAN_EMAIL_RECIPIENTS', ['to@example.com'])
  WATCHMAN_EMAIL_HEADERS = getattr(settings, 'WATCHMAN_EMAIL_HEADERS', {})
  
  DEFAULT_CHECKS = (
      'watchman.checks.caches',
      'watchman.checks.databases',
      'watchman.checks.storage',
  )
  PAID_CHECKS = (
      'watchman.checks.email',
  )
  
  if WATCHMAN_ENABLE_PAID_CHECKS:
      DEFAULT_CHECKS = DEFAULT_CHECKS + PAID_CHECKS
  
  WATCHMAN_CHECKS = getattr(settings, 'WATCHMAN_CHECKS', DEFAULT_CHECKS)
  
subject: Add link to issue