Documentation on screen arguments

This is not a feature request but a documentation request - it would be very helpful to have documentation or examples demonstrating passing data from one page to the next when FlowBuilder is used as the navigation scheme between those pages.

With the Navigator 1.0 API in Flutter were was an optional argument for passing an "arguments" Object to a named route: https://api.flutter.dev/flutter/widgets/Navigator/pushNamed.html.

Ideally the same mechanism would be used if deep linking to a page - if the page requires some minimum set of arguments, what is the best way to inject them using FlowBuilder?

Thank you for your consideration!