import { ActivatedRouteSnapshot, CanDeactivate, RouterStateSnapshot, UrlTree } from '@angular/router';
import { BsHasNavigationLock } from '../interface/has-navigation-lock';
import * as i0 from "@angular/core";
export declare class BsNavigationLockGuard implements CanDeactivate<BsHasNavigationLock> {
    canDeactivate(component: BsHasNavigationLock, currentRoute: ActivatedRouteSnapshot, currentState: RouterStateSnapshot, nextState?: RouterStateSnapshot): Promise<boolean | UrlTree>;
    static ɵfac: i0.ɵɵFactoryDeclaration<BsNavigationLockGuard, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<BsNavigationLockGuard>;
}
