/// <reference types="node" resolution-mode="require"/>
/// <reference types="node" resolution-mode="require"/>
import fs from "fs";
import { Launcher } from "../launcher.js";
import { Pair } from "./pair.js";
/**
 * Download multi files after checking hash.
 * @throws RequestError
 * @param files A map from URL to path
 * @param launcher Launcher
 * @returns true if success
 */
export declare function checkAndDownloadAll(files: Map<string, Pair<string, fs.PathLike>>, launcher: Launcher, algorithm?: string): Promise<boolean>;
/**
 * Download multi files.
 * @throws RequestError
 * @param files A map from URL to path
 * @param launcher Launcher
 * @returns true if success
 */
export declare function downloadAll(files: Map<string, fs.PathLike>, launcher: Launcher): Promise<boolean>;
/**
 * Download a file after checking hash.
 * @throws {@link FormattedError}
 * @param url - URL.
 * @param filename - File name.
 * @param mirror - BMCLAPI mirror.
 */
export declare function checkAndDownload(url: string, filename: fs.PathLike, hash: string, launcher: Launcher, algorithm?: string): Promise<boolean>;
/**
 * Download a file.
 * @throws {@link FormattedError}
 * @param url - URL.
 * @param filename - File name.
 * @param mirror - BMCLAPI mirror.
 */
export declare function download(url: string, filename: fs.PathLike, launcher: Launcher): Promise<boolean>;
export declare function downloadIntoStream(url: string, out: NodeJS.WritableStream, launcher: Launcher): Promise<boolean>;