Bug: type error when using stateIn guard with setup()

[aris-lvm]

XState version

XState version 5

Description

There's a TS error when using stateIn guard within a setup(...).createMachine(...) definition. With just createMachine(...) the error goes away.

➜  xstate-state-in-issue git:(main) ✗ npx tsc --noEmit
index.ts:26:9 - error TS2322: Type '{ guard: GuardPredicate<MachineContext, { type: "TOGGLE"; }, undefined, any>; }' is not assignable to type 'TransitionConfigOrTarget<MachineContext, { type: "TOGGLE"; }, { type: "TOGGLE"; }, never, never, never, never, EventObject, MetaObject>'.
  Types of property 'guard' are incompatible.
    Type 'GuardPredicate<MachineContext, { type: "TOGGLE"; }, undefined, any>' is not assignable to type 'GuardPredicate<MachineContext, { type: "TOGGLE"; }, undefined, never>'.
      Type 'any' is not assignable to type 'never'.

26         TOGGLE: { guard: stateIn("idle") },
           ~~~~~~


Found 1 error in index.ts:26

Here's the machine definition:

export const exampleMachineWithSetup = setup({
  types: {
    events: {} as { type: "TOGGLE" },
  },
}).createMachine({
  initial: "idle",
  states: {
    idle: {
      on: {
        TOGGLE: { guard: stateIn("idle") },
      },
    },
  },
});

Expected result

There should be no error, as with the standalone createMachine(...) definition.

Actual result

See the error message above.

Reproduction

https://github.com/aris-lvm/xstate-state-in-issue

Additional context

XState version: 5.20.2
TypeScript version: 5.9.2

Sorry for providing the repo instead of one of the templates. On CodeSandbox there was a completely unrelated TS error and StackBlitz confused me with it's AI.