docs: def _is_api_key_correct(request):
      """Return whether the Geckoboard API key on the request is correct."""
      api_key = getattr(settings, 'GECKOBOARD_API_KEY', None)
      if api_key is None:
          return True
      auth = request.META.get('HTTP_AUTHORIZATION', '').split()
      if len(auth) == 2:
          if auth[0].lower() == b'basic':
              request_key = base64.b64decode(auth[1]).split(b':')[0]
              return request_key == api_key
      return False