import { Injector } from '@angular/core';
import * as i0 from "@angular/core";
export declare class ViewIdService {
    static readonly VIEW_ID_SEGMENT_SEPARATOR = "-";
    protected _viewId: string;
    constructor(parentInjector: Injector, idSegment: string);
    get viewId(): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<ViewIdService, [{ optional: true; skipSelf: true; }, null]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ViewIdService>;
}