code: def init_get(self, request):
          
          self.request = request
          self.service = request.GET.get('service')
          self.url = request.GET.get('url')
          self.ajax = settings.CAS_ENABLE_AJAX_AUTH and 'HTTP_X_AJAX' in request.META
docs: Initialize the :class:`LogoutView` attributes on GET request
  
              :param django.http.HttpRequest request: The current request object