I have some Set, which defines some IDs:
export const IDS: Set<number> = new Set<number>([1, 30, 50, 9999]);

Now I’d like to define mapping for their ID-SHA pairs in object structure:

export const IdMap: MapType= {
  1: '33b87373-cd6c-4c5b-873a-3290f0854a0b',
  30: '027c92d7-aab6-4047-82cd-fd5547100505',
  50: '3a9b2155-ecfe-4cde-9b9b-0f5c19876705',
  9999: 'cc498b4b-64e4-4215-bd55-6c3ce7367922',
};

The goal is to define MapType to enforce field names to be only from Set defined above. I’ve already tried several exotic constructs like:

type MapType= { [key in keyof typeof IDS]: string };

that looks reasonable, but don’t work at all.

I’d be glad for any further assist