/**
 * 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 { EventEmitter } from '@angular/core';
import { NzGraphGroupNode, NzGraphNode } from './interface';
/**
 * https://angular.io/errors/NG3003
 * An intermediate interface for {@link NzGraphComponent} & {@link NzGraphNodeComponent}
 */
export declare abstract class NzGraph {
    abstract nzNodeClick: EventEmitter<NzGraphNode | NzGraphGroupNode>;
}