import { Observable } from 'rxjs';
import { HttpClient } from '@angular/common/http';
import * as i0 from "@angular/core";
export declare class NgxConfigService {
    private readonly config$;
    private config;
    constructor(httpClient: HttpClient, url: string);
    getConfig(key: string): Observable<any>;
    getConfigSnapshot(key: string): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxConfigService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NgxConfigService>;
}