/**
 * @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 { CdkConnectedOverlay } from '@angular/cdk/overlay';
export declare class NzConnectedOverlayDirective {
    private cdkConnectedOverlay;
    constructor(cdkConnectedOverlay: CdkConnectedOverlay);
}