declare namespace Ext {
    export namespace app {
        export interface EventBusConfig {
        }

        export class EventBus extends Ext.Base  {
            public control(selectors?: object, controller?: Ext.app.BaseController): void;
            public listen(to?: object, controller?: Ext.app.BaseController): void;
            public unlisten(controllerId?: string | Ext.app.BaseController): void;
        }
    }
}