/**
 * @license
 * Copyright DagonMetric. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found under the LICENSE file in the root directory of this source tree.
 */
import { NgZone } from '@angular/core';
import firebase from 'firebase/app';
import { FirebaseConfig } from './firebase-remote-config-provider-options';
export declare function firebaseAppFactory(options: FirebaseConfig, zone: NgZone, appName?: string): firebase.app.App;