import * as watchman from 'fb-watchman';
import type { Options, Event, SubscribeCallback, AsyncSubscription } from '@parcel/watcher';
type WatchmanArgs = any;
type FilePath = string;
type GlobPattern = string;
export interface Watcher {
    getEventsSince(dir: FilePath, snapshot: FilePath, opts?: Options): Promise<Array<Event>>;
    subscribe(dir: FilePath, fn: SubscribeCallback, opts?: Options): Promise<AsyncSubscription>;
    unsubscribe(dir: FilePath, fn: SubscribeCallback, opts?: Options): Promise<void>;
    writeSnapshot(dir: FilePath, snapshot: FilePath, opts?: Options): Promise<FilePath>;
}
export declare class AtlaspackWatcherWatchmanJS implements Watcher {
    subscriptionName: string;
    client: watchman.Client;
    initPromise: Promise<void> | undefined;
    constructor();
    commandAsync(args: WatchmanArgs): Promise<any>;
    capabilityCheckAsync(args: any): Promise<any>;
    _init(watchDir: string): Promise<void>;
    init(watchDir: string): Promise<void>;
    writeSnapshot(dir: string, snapshot: FilePath): Promise<string>;
    getEventsSince(dir: string, snapshot: FilePath, opts?: Options): Promise<Event[]>;
    _createExpression(dir: string, ignore?: Array<FilePath | GlobPattern>): WatchmanArgs;
    subscribe(dir: string, fn: SubscribeCallback, opts?: Options): Promise<AsyncSubscription>;
    unsubscribe(dir: string): Promise<void>;
}
export {};