import { HeartbeatMessage } from './types';
export declare type UserOpts = {
    onOnline?: () => void;
    onOffline?: () => void;
    ttl?: number;
};
declare class User {
    username: string;
    status: 'online' | 'offline';
    lastseen: Date;
    private timeout?;
    private opts;
    constructor(username: string, opts?: UserOpts);
    processHeartbeat(heartbeat: HeartbeatMessage): void;
    isOffline(): boolean;
    isOnline(): boolean;
    setOffline(): void;
    setOnline(): void;
    private updateTimeout;
}
export default User;