import * as express from 'express';
export declare class TxMonitorServerApplication {
    private static _instance;
    express: express.Application;
    private server;
    private constructor();
    static readonly instance: TxMonitorServerApplication;
    private middleware;
    /**
     *
     * @param where - the path of which the service is route (regular express path)
     * @param service - a class which implement this route
     */
    register(where: any, service: any): void;
    listen(host: string, port: number): void;
    close(): void;
}