import * as i0 from "@angular/core";
export declare class TreeDataHelperService {
    findNode(data: any, selector: any): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<TreeDataHelperService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TreeDataHelperService>;
}