How to set the type of the interface key in the interface?

Question

JavaScript

There is an array of modules, how to limit the parent parameter to an array of keys of the same array (or another)?

export interface module {
    _about: string,
    parent?: modules.moduleID//Вот тут ошибка
}
export interface modules {
    [moduleID: number]: module
}

const list: modules = {
    0: {
        _about: "Root",
    },
    1: {
        _about: "Child",
        parent: 0 //Нужно ограничить до 0 | 1
    }
};

Answer 1

unfortunately this cannot be done, the type cannot know in any way what keys will be in an object of this type