@property
    def invisible(self):
        return self.present and not self.visible
This checks all the calls made after 'receiving xml'
dataset/ETHPy150Open edx/bok-choy/bok_choy/query.py/BrowserQuery.invisible--crossover with--dataset/ETHPy150Open facebook/fbpush/tests/test_push.py/FBPushJunoscriptRpcTestCase.failure_reply_xml