import Watchpack, { TimeInfo } from 'watchpack';
export { Watchpack, TimeInfo };
export interface WatchEvent {
    changes: string[];
    removals: string[];
    getAllFiles: () => string[];
    knownFiles: Map<string, TimeInfo>;
}
export interface WatchOptions {
    files?: string[];
    directories?: string[];
    missing?: string[];
    aggregateTimeout?: number;
    startTime?: number;
    ignoreFileContentUpdate?: boolean;
}
export type WatchCallback = (event: WatchEvent) => void;
export type ChangeCallback = (file: string, time: number) => void;
export declare function watch({ files, directories, missing, aggregateTimeout, startTime, ignoreFileContentUpdate }: WatchOptions, callback: WatchCallback, callbackUndelayed?: ChangeCallback): () => void;