F.AutoPath not working for array index

[nandorojo]

🐞 Bug Report

Describe the bug

I get an error if I use an array index.

Reproduce the bug

import { F } from 'ts-toolbelt'
 
type Obj = {
    hi: boolean[]
}

declare function get<Obj extends object, Path extends string>(o: Obj, path: F.AutoPath<Obj, Path>): Path

const gotten = get({} as Obj, 'hi.0')

Code: https://www.typescriptlang.org/play?#code/JYWwDg9gTgLgBAbzgMTgXzgMyhEcDkMAzgLQwQQA2ARgKaUz4BQcTMAnmLXAPLUBWcALyIWccQAtgALjjUKlWgEMAdgG0AukzRMmAE1oBjSkqjdMAVxWGYwCCrgBzWjAA8fQbQAeMWir1EvAJGMAA0cAAKSjAScN6+-oFEMFDAKo4AfAAUELIe4WDRErLIAHQAghbkUTHuAuE1EhkAlLKNuob2yU4QMAnCTi5ZCBhKgfkEUqUADPjNQA

Expected behavior

It should work for arrays, like the docs.

Possible Solution

Screenshots

Additional context

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.