export { EventEmitter, Observable } from 'angular2/src/facade/async';
/**
 * Message Bus is a low level API used to communicate between the UI and the background.
 * Communication is based on a channel abstraction. Messages published in a
 * given channel to one MessageBusSink are received on the same channel
 * by the corresponding MessageBusSource.
 */
export class MessageBus {
}
