def find_element(self, by=By.ID, value=None):
        if not By.is_valid(by) or not isinstance(value, str):
            raise InvalidSelectorException("Invalid locator values passed in")

        return self.execute(Command.FIND_ELEMENT,
                             {'using': by, 'value': value})['value']
Implements :func:`autobahn.wamp.interfaces.ISubscriber.subscribe`
dataset/ETHPy150Open apiad/sublime-browser-integration/selenium/webdriver/remote/webdriver.py/WebDriver.find_element--crossover with--dataset/ETHPy150Open crossbario/autobahn-python/autobahn/wamp/protocol.py/ApplicationSession.subscribe