Bug: Type issue with `not` helper

XState version

XState version 5

Description

I'm trying to create a package that creates a reusable state machine. I've simplified our machine to locate the error being the not function:

import { not, setup } from 'xstate';

export const myMachine = setup({
  guards: {
    myGuard: () => true,
  },
}).createMachine({
  states: {
    foo: {
      on: {
        someEvent: {
          target: 'bar',
          guard: not('myGuard'),
        },
      },
    },
    bar: {},
  },
});

Expected result

I expected the typings to be built without issues.

Actual result

When trying to build types for the packages, I get the following error:

src/my-machine.ts:3:14 - error TS2742: The inferred type of 'myMachine' cannot be named without a reference to '../../../node_modules/xstate/dist/declarations/src/guards'. This is likely not portable. A type annotation is necessary.

3 export const myMachine = setup({

It seems like the issue stems from the not function referencing the GuardPredicate type which is not exported by XState and TypeScript is unable to build a type for it without this reference.

Reproduction

https://codesandbox.io/p/devbox/angry-goldberg-v42j8m?workspaceId=4a3e8946-02ff-4af1-aeb6-deeb01d9e58a

Additional context

Try running pnpm run build in the reproduction and you will see the error. For some reason, the error doesn't occur when using...

"moduleResolution": "node",

...in tsconfig.json. But that doesn't seem like a viable solution as that causes other module issues and is not really recommended by TS at this point.

statelyai / xstate