/// <reference types="node" />
import { finished, Readable, Writable } from "stream";
export declare const whenFinished: typeof finished.__promisify__;
export declare function writeAll(stream: Writable, data?: string): Promise<void>;
export declare function readAll(stream: Readable): Promise<string>;
export declare function streamify(streamPromise: Promise<Readable>): Readable;
export declare const timeoutToken: unique symbol;
export declare function withTimeout(promise: Promise<any>, timeout?: number): Promise<any>;