/**-----------------------------------------------------------------------------------------
* Copyright © 2025 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { QueryList } from '@angular/core';
import { ColumnGroupComponent } from '@progress/kendo-angular-treelist';
import { OptionChangesService } from '../common/option-changes.service';
import { GanttColumnBase } from './column-base.component';
import { HeaderTemplateDirective } from './header-template.directive';
import * as i0 from "@angular/core";
export declare class GanttColumnGroupComponent extends ColumnGroupComponent {
    private options;
    /**
     * @hidden
     */
    children: QueryList<GanttColumnBase>;
    /**
     * @hidden
     */
    headerTemplates: QueryList<HeaderTemplateDirective>;
    constructor(options: OptionChangesService, parent?: GanttColumnBase);
    ngOnChanges(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<GanttColumnGroupComponent, [null, { optional: true; host: true; skipSelf: true; }]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<GanttColumnGroupComponent, "kendo-gantt-column-group", never, {}, {}, ["children", "headerTemplates"], never, true, never>;
}