import type { MessageEvent, CloseEvent, ErrorEvent } from 'ws';
import { EventHandler, EventListener } from '../events/index.mjs';
export type { MessageEvent, CloseEvent, ErrorEvent } from 'ws';
export declare class WebSocket {
    #private;
    constructor(endpoint: string);
    on(event: 'open', func: EventHandler<void>): EventListener;
    on(event: 'message', func: EventHandler<MessageEvent>): EventListener;
    on(event: 'error', func: EventHandler<ErrorEvent>): EventListener;
    on(event: 'close', func: EventHandler<CloseEvent>): EventListener;
    once(event: 'open', func: EventHandler<void>): EventListener;
    once(event: 'message', func: EventHandler<MessageEvent>): EventListener;
    once(event: 'error', func: EventHandler<ErrorEvent>): EventListener;
    once(event: 'close', func: EventHandler<CloseEvent>): EventListener;
    send(data: any): void;
    close(code?: number): void;
}