import { PipeTransform } from '@angular/core';
import { IElementDto } from '../model';
import * as i0 from "@angular/core";
export declare class GroupChildElementsPipe implements PipeTransform {
    transform(element: IElementDto): IElementDto[] | null;
    static ɵfac: i0.ɵɵFactoryDeclaration<GroupChildElementsPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<GroupChildElementsPipe, "groupChildElements", true>;
}