returns

Object

example

import {O} from 'ts-toolbelt'

enum E {
 A = 'Av',
 B = 'Bv',
 C = 'Cv',
 D = 'Dv',
 X = 1
}

type O = {
 A: 'Av'
 B: 'Bv'
 C: 'Cv'
 D: 'Dv'
 X: 1
}

type test0 = O.Invert<typeof E>
type test1 = O.Invert<O>