import { CanDeactivate, ActivatedRouteSnapshot, RouterStateSnapshot } from '@angular/router';
import { Observable } from 'rxjs/Observable';
import { CanComponentDeactivate } from './can-leave.interface';
export declare class CanDeactivateGuard implements CanDeactivate<CanComponentDeactivate> {
    /**
     * Check if current route can be deactivated.
     *
     * @author Joaquin Volpe <joaquin.volpe@woopasoft.com>
     * @memberof CanDeactivateGuard
     */
    canDeactivate(component: CanComponentDeactivate, route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean;
}