import { PoTabComponent } from './po-tab/po-tab.component';
export declare class PoTabsService {
    private readonly onChangesTriggeredSource;
    private readonly onChangesTriggeredActiveSource;
    onChangesTriggered$: import("rxjs").Observable<any>;
    triggerActiveOnChanges$: import("rxjs").Observable<any>;
    triggerOnChanges(tab?: PoTabComponent): void;
    triggerActiveOnChanges(tab: PoTabComponent): void;
}