import type { UnknownRecord } from './types/records.js';
export type CombinationsInput<Type> = {
    [Property in keyof Type]: Type[Property] extends UnknownRecord ? CombinationsInput<Type[Property]> : Type[Property] | Type[Property][];
};
export type CombinationsOutput<Input extends CombinationsInput<unknown>> = Input extends CombinationsInput<infer Type> ? Type : never;
export declare function combinations<Type extends object = object, Input extends CombinationsInput<Type> = CombinationsInput<Type>>(input: Input): Generator<CombinationsOutput<Input>, undefined>;