I want to make a typescript interface with unknown number of generic properties which all should be typed as booleans. If I wanted to make an interface with property 'foo' and a generic value I would do:

export interface Foo<T> {
  foo: T;
}

Since I want to do basically the opposite I tried

export interface booleansMap<T> {
  T: boolean;
}

but I got

'T' is defined but never used.(@typescript-eslint/no-unused-vars)

from eslint

Having trouble finding this in the docs (probably not googling with the correct nomenclature) - so I was wondering if anyone understands and can explain how to make such an interface

It should be able to handle something like:

{
  foo: false,
  bar: true,
  baz: false
}

or

{
  foo: true,
}

or any other object with any number of properties as long as all of the values will be booleans...