import { TemplateRef } from '@angular/core';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class PageViewerService {
    model: Record<string, string | null>;
    storeWebHistory: boolean;
    private pageSource;
    page: Observable<string | null>;
    manifest: Record<string, {
        title?: string;
        template: TemplateRef<any>;
    }>;
    private title;
    constructor();
    registerPage(id: string, template: TemplateRef<any>, title?: string): void;
    setCurrentPage(page: string | null, data?: any, ignorePush?: boolean): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<PageViewerService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<PageViewerService>;
}