import {expectAssignable, expectNotAssignable, expectType} from 'tsd'; import type {Stringified} from '../index'; declare const stringified: Stringified<{a: number; b: string}>; expectType<{a: string; b: string}>(stringified); type Car = { model: string; speed: number; }; expectNotAssignable>({model: 'Foo', speed: 101}); expectAssignable>({model: 'Foo', speed: '101'});