module import { EventEmitter } from "events" ; import { ErrorCallback } from "node-opcua-status-code" ; export interface IRegisterServerManager extends EventEmitter { discoveryServerEndpointUrl : string ; start ( callback ) : void ; stop ( callback ) : void ; dispose ( ) : void ; on ( eventName , eventHandler ) : this ; on ( eventName , eventHandler ) : this ; on ( eventName , eventHandler ) : this ; on ( eventName , eventHandler ) : this ; }