/**
 * 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 { VtsCascaderOption } from './typings';
export declare function isChildOption(o: VtsCascaderOption): boolean;
export declare function isParentOption(o: VtsCascaderOption): boolean;