/**
 * @license
 * Copyright Alibaba.com All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
import { TemplateRef } from '@angular/core';
import * as i0 from "@angular/core";
export declare class NzAutocompleteOptgroupComponent {
    nzLabel: string | TemplateRef<void>;
    constructor();
    static ɵfac: i0.ɵɵFactoryDef<NzAutocompleteOptgroupComponent>;
    static ɵcmp: i0.ɵɵComponentDefWithMeta<NzAutocompleteOptgroupComponent, "nz-auto-optgroup", ["nzAutoOptgroup"], { "nzLabel": "nzLabel"; }, {}, never>;
}
