title: How to check if an element exists or not in flutter driver(QA environment)?
body: <p>I would like to check if an element exists or not. Something like a function that returns a Boolean. Or something similar to a function in Selenium 'ifExists' which wouldn't throw an exception if the element didn't necessarily exist and it would go about continuing the process without stopping in between when an element isn't found. There are similar things that exist on flutter_test but I have been unable to use it alongside flutter_driver so far.</p>