import type { IStream } from '../types.js';
export declare function zip<A>(state: {
    [P in keyof A]: IStream<A[P]>;
}): IStream<Readonly<A>>;
/**
 * Combine values from multiple streams in lockstep
 *
 * streamA: -1---2---3------>
 * streamB: ---a---b---c---->
 * zipMap:  ---A---B---C---->
 *             |   |   |
 *             |   |   +-- [3,c]
 *             |   +-- [2,b]
 *             +-- [1,a]
 */
export declare function zipMap<T extends readonly unknown[], R>(f: (...args: T) => R, ...sourceList: [...{
    [K in keyof T]: IStream<T[K]>;
}]): IStream<R>;