How to get invoked child actor with correct state types in React?

[ersinakinci]

I want to write a bit of React code to access my child actor's current state (using xState 5 and @xstate/react). I imagine that it should look something like this:

const [state, send] = useMachine(machine);
const childState = ...

childState.value === ???

My current attempt looks like this:

const [state, send] = useMachine(machine);
const childState = useSelector(state.children.someChild, (snapshot) => snapshot);

childState?.value // {} | undefined

The problem is that childState.value isn't typed properly. None of my child machine's states come through in the typing.

Any ideas on how to fix this?

[ersinakinci]

I'm wondering whether #4263 is relevant? @davidkpiano @Andarist