How to get Button Highlighted status in iOS UIAutomation?

I am trying to get a button's status to see if it is highlighted or not, but I cannot find such method in iOS UIAutomation, can anyone help?

I tried button().value(), but it return 1 if it is last accessed, and return null if it is not.

Solution

UIAutomation exposes only a limited set of properties as described in their reference

Out of the box, you can check stuff like isEnabled, isVisible, etc