import { QueryList } from '@angular/core';
import * as i0 from "@angular/core";
export declare class HeadwindQueryListService {
    findIndex<Comp>(queryList: QueryList<Comp> | undefined, comparator: (component: Comp) => boolean): number;
    static ɵfac: i0.ɵɵFactoryDeclaration<HeadwindQueryListService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<HeadwindQueryListService>;
}