import { App, AppOptions } from 'firebase-admin/app';
import { Auth } from 'firebase-admin/auth';
import { Firestore } from 'firebase-admin/firestore';
export declare class Firebase {
    private static instance;
    private static firestore;
    private static auth;
    static getInstance(options?: AppOptions, appName?: string): App;
    static getDatabase(options?: AppOptions, appName?: string): Firestore;
    static getAuth(options?: AppOptions, appName?: string): Auth;
}