import { type LogFunc } from '../interface/common';
export default class HeartbeatManager {
    private wsId;
    private _socket;
    private _log?;
    private _interval;
    private _heartbeatInterval?;
    private _pingStack;
    private readonly PING_MAX_COUNT;
    constructor(wsId: string, socket: WebSocket, interval?: number, log?: LogFunc);
    start(): void;
    stop(): void;
    /**
     * socket 收到消息之后，清空堆栈
     */
    clear(): void;
    private _ping;
}