get state of executed system.

[N4tus]

It is possible to get the state of an executed system back out?
Something like this?

#[system]
fn example(#[state] s: &mut u32) {}

fn test(){
    let sys = example_system(0);
    let mut schedule = Schedule::builder()
        .add_system(&mut sys)
        .build();
   schedule.execute(world, resources);
   let s = sys.states().s();
}

Specifics can change, it is about the general concept.