import { PipeTransform, ChangeDetectorRef } from '@angular/core';
import * as i0 from "@angular/core";
export declare class GroupPipe implements PipeTransform {
    private context;
    constructor(cdRef: ChangeDetectorRef);
    transform(index: any): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<GroupPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<GroupPipe, "groupPipe", true>;
}