/// <reference types="node" />
import { EventEmitter } from "events";
export declare class Watcher extends EventEmitter {
    private path;
    private exists;
    private watchContents?;
    private watchExistence?;
    private debounce_ms;
    private debouncedChange;
    private log;
    constructor(path: string, debounce_ms: number);
    private init;
    private initWatchContents;
    private initWatchExistence;
    private watchExistenceChange;
    private change;
    close(): void;
}