import { CanDeactivate } from '@angular/router';
import { ComponentDeactivateWarning } from './component-deactive-warning.interface';
import { NecAlert } from '../../service/alert/alert.service';
export declare class NecLeavingWarningGuard implements CanDeactivate<ComponentDeactivateWarning> {
    private alert;
    constructor(alert: NecAlert);
    canDeactivate(component: ComponentDeactivateWarning): boolean | Promise<boolean>;
}