ts-essentials/dist/require-at-most-one/index.d.ts

All essential TypeScript types in one place

import { AnyRecord } from "../any-record";
import { IsAny } from "../is-any";
import { StrictOmit } from "../strict-omit";
type _RequireAtMostOne<Type extends AnyRecord, Keys extends keyof Type> = {
    [Key in Keys]: Required<Pick<Type, Key>> & Partial<Record<Exclude<Keys, Key>, never>>;
}[Keys] & StrictOmit<Type, Keys>;
export type RequireAtMostOne<Type extends AnyRecord, Keys extends keyof Type = keyof Type> = IsAny<Type> extends true ? any : _RequireAtMostOne<Type, Keys>;
export {};