import { PipeTransform } from '@angular/core';
import { NzTreeNodeOptions } from 'ng-zorro-antd/tree';
export declare class MFilterTreeNodesPipe implements PipeTransform {
    transform(tree: NzTreeNodeOptions[], searchValue?: string, keyName?: string): NzTreeNodeOptions[];
    loopSearch(tree: NzTreeNodeOptions[], searchValue?: string, keyName?: string): NzTreeNodeOptions[];
}