Can't create Record<Id, any>

Expected Behavior

Since Id objects are just strings, I should be able to create a Record using Ids as keys.

Actual Behavior

I get the following error:

Type 'Id<Creep>' does not satisfy the constraint 'string | number | symbol'.
  Type 'Id<Creep>' is not assignable to type 'string'.

Sample code (if available)

var data: Record<Id<Creep>, number> = {};

Your Environment

• Node.js version: 12.13.0
• TypeScript version: 3.6.4
• {typed-screeps or @types/screeps delete as appropriate} version: https://github.com/screepers/typed-screeps/commit/be96ea9f377dadf00fbddf430f88e44ee01e64b8

[eduter]

I don’t know what’s the use case, but const data = new Map<Id<Creep>, number>() may also be an option.

[pyrodogg]

Cast to string or number as index types can only be string | number | symbol types.