#![allow(dead_code)]

use polkadot_overseer_all_subsystems_gen::AllSubsystemsGen;

#[derive(Clone, AllSubsystemsGen)]
struct AllSubsystems<A, B> {
	a: A,
	b: B,
}

fn main() {
	let all = AllSubsystems::<u8, u16> {
		a: 0u8,
		b: 1u16,
	};
	let _all: AllSubsystems<_,_> = all.replace_a::<u32,_>(|_| 777_777u32);
}