export declare enum WSClientState {
    Connecting = 0,
    Connected = 1,
    Disconnecting = 2,
    Disconnected = 3
}
export interface WSClientSettings {
    reconnectInterval?: number;
    maxReconnectInterval?: number;
    reconnectDecay?: number;
    connectTimeout?: number;
    maxReconnectAttempts?: number | undefined;
}
export declare class WSClient {
    private static defaultSettings;
    private _settings;
    private _state;
    private _url;
    private _protocols;
    private _ws;
    private _attempts;
    private _forceClose;
    onConnect: () => void;
    onConnecting: (code: number) => void;
    onDisconnect: (code: number) => void;
    onMessage: (data: any) => void;
    onError: (event: Event) => void;
    get state(): WSClientState;
    get url(): string;
    get protocols(): string | string[];
    get reconnectAttemps(): number;
    constructor(settings?: WSClientSettings);
    private tryOpen;
    open(url: string, protocols?: string | string[]): void;
    close(): void;
    send(data: any): void;
}