import { Location } from '@angular/common';
import { OnDestroy } from '@angular/core';
import { ActivatedRoute, ParamMap, Params, Router, UrlSerializer } from '@angular/router';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
interface ChangedQueryParams {
    params: Params;
    replaceUrl?: boolean;
}
export declare class QueryParamsService implements OnDestroy {
    private router;
    private urlSerializer;
    private location;
    private activatedRoute;
    private readonly _queryParams$;
    private changedQueryParams$;
    private readonly destroyed$;
    constructor(router: Router, urlSerializer: UrlSerializer, location: Location, activatedRoute: ActivatedRoute);
    static mapChangedQueryParams(currentQueryParams: Params, appendedQueryParams: Params, replaceUrl?: boolean): ChangedQueryParams;
    static needToReplaceUrl(currentQueryParams: Params, normalizedQueryParams: Params): boolean;
    getQueryParams<T extends Params>(): T;
    getQueryParams$<T extends Params>(): Observable<T>;
    getQueryParamMap(): ParamMap;
    getQueryParamMap$(): Observable<ParamMap>;
    append(params: Params, replaceUrl?: boolean): void;
    clear(): void;
    delete(...keys: string[]): void;
    ngOnDestroy(): void;
    private getCurrentBrowserQueryParams;
    static ɵfac: i0.ɵɵFactoryDeclaration<QueryParamsService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<QueryParamsService>;
}
export {};