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kotlinlang

i have a NavigationViewModel that contains a list of enums that represent the menu items, text, graphics, etc.  and a `selectedNavigationItem`.  I want to correctly bind my listmenu to that model so that if the user clicks on a menu item it shows as the active item as usual and the model changes.  That part works with `bind`.  But ideally i'd like to be able to change the `NavigationViewModel::selectedNavigationItem` from elsewhere and have the active item in the listmenu update correctly as well