export type WsHeartbeatOption = Partial<{
    pingInterval: number;
    pingTimeout: number;
}>;
export type WebSocketBase = {
    close: () => void;
    send: (data: any) => void;
    addEventListener: (name: "message" | "close", listener: (e: any) => void) => void;
};
export declare function setWsHeartbeat(ws: WebSocketBase, pingMessage: string, option?: WsHeartbeatOption): void;