import { TunnelEvent, TunnelListener, TunnelParams } from './types';
export declare class NavioTunnel {
    private events;
    on(event: TunnelEvent, listener: TunnelListener): () => void;
    removeListener(event: TunnelEvent, listener: TunnelListener): void;
    echo(event: TunnelEvent, params?: TunnelParams): void;
    once(event: TunnelEvent, listener: TunnelListener): void;
}