/**
 * @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
 */
export declare type NzButtonGroupSize = 'large' | 'default' | 'small';
export declare class NzButtonGroupComponent {
    nzSize: NzButtonGroupSize;
}