import { MonoTypeOperatorFunction, Observable } from 'rxjs';
import { Navigation } from './types';
export type NavigationState = "busy" | "free";
export type NavigationSignals = {
    navigation$: Observable<Navigation>;
    navigationState$: Observable<NavigationState>;
};
export declare const waitForNavigationSettled: <T>(navigationState$: Observable<NavigationState>) => MonoTypeOperatorFunction<T>;
export declare const observeSettledNavigation: ({ navigation$, navigationState$, }: NavigationSignals) => Observable<Navigation>;
export declare const observeNextSettledNavigation: (signals: NavigationSignals) => Observable<Navigation>;
export declare const takeUntilNextNavigationSettled: <T>(signals: NavigationSignals) => MonoTypeOperatorFunction<T>;