/**-----------------------------------------------------------------------------------------
* Copyright © 2025 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { Subject } from 'rxjs';
import * as i0 from "@angular/core";
/**
 * @hidden
 */
export declare class UndoRedoService {
    originalEvent: any;
    onUndo: Subject<undefined>;
    onRedo: Subject<undefined>;
    stackEndReached: Subject<'start' | 'end' | false>;
    static ɵfac: i0.ɵɵFactoryDeclaration<UndoRedoService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<UndoRedoService>;
}