import type { IScheduler, ISink, IStream, ITime } from '../types.js';
/**
 * Transform each value in a stream with a function
 */
export declare class MapStream<T, R> implements IStream<R> {
    readonly f: (value: T) => R;
    readonly source: IStream<T>;
    constructor(f: (value: T) => R, source: IStream<T>);
    run(sink: ISink<R>, scheduler: IScheduler): Disposable;
}
/**
 * Transform each value in a stream with a function
 *
 * stream:        -1-2-3-4->
 * map(x => x*2): -2-4-6-8->
 */
export declare const map: IMapCurry;
export declare function eventTryMap<In, Out>(sink: ISink<Out>, time: ITime, f: (value: In) => Out, value: In): void;
export interface IMapCurry {
    <T, R>(f: (value: T) => R, source: IStream<T>): IStream<R>;
    <T, R>(f: (value: T) => R): (source: IStream<T>) => IStream<R>;
}