import { FirebaseApp as FirebaseAppType } from "firebase/app";
import { SDKOptions } from "../../types/options";
export declare class FirebaseApp {
    protected standalone: boolean;
    app: FirebaseAppType;
    constructor(options: SDKOptions);
    private getApp;
    connectEmulators(options: SDKOptions): void;
    goOnline(): void;
    goOffline(): void;
    disconnect(): Promise<any>;
}
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