import { OnDestroy, OnInit } from '@angular/core';
import * as i0 from "@angular/core";
/**
 * Provides a way to mark a modal as "dirty" and displays a confirmation
 * message when a user closes the modal without saving.
 */
export declare class SkyModalIsDirtyDirective implements OnInit, OnDestroy {
    #private;
    /**
     * Whether the user edited an input on the modal.
     * @required
     */
    isDirty: boolean;
    ngOnInit(): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SkyModalIsDirtyDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<SkyModalIsDirtyDirective, "sky-modal[isDirty]", never, { "isDirty": { "alias": "isDirty"; "required": false; }; }, {}, never, never, true, never>;
}