import { NzTreeBaseService } from 'ng-zorro-antd/core/tree';
import * as i0 from "@angular/core";
export declare class NzTreeService extends NzTreeBaseService {
    constructor();
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTreeService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NzTreeService>;
}