/**
 * The following code is modified based on
 * https://github.com/webpack/webpack/blob/4b4ca3b/lib/MultiWatching.js
 *
 * MIT Licensed
 * Author Tobias Koppers @sokra
 * Copyright (c) JS Foundation and other contributors
 * https://github.com/webpack/webpack/blob/main/LICENSE
 */
import { MultiCompiler } from "./MultiCompiler";
import { Watching } from "./Watching";
/** @typedef {import("./MultiCompiler")} MultiCompiler */
/** @typedef {import("./Watching")} Watching */
/**
 * @template T
 * @callback Callback
 * @param {(Error | null)=} err
 * @param {T=} result
 */
declare class MultiWatching {
    watchings: Watching[];
    compiler: MultiCompiler;
    /**
     * @param {Watching[]} watchings child compilers' watchers
     * @param {MultiCompiler} compiler the compiler
     */
    constructor(watchings: Watching[], compiler: MultiCompiler);
    invalidate(callback: any): void;
    /**
     * @param {Callback<void>} callback signals when the watcher is closed
     * @returns {void}
     */
    close(callback: any): void;
    suspend(): void;
    resume(): void;
}
export default MultiWatching;