export declare class AnalyticsClient { private userTraits?; private rudderstackClient?; private _userId?; private _version?; get userId(): string | undefined; get version(): string | undefined; flush(): Promise; initializeClient(rudderstackWriteKey: string, rudderstackDataPlaneURL: string, packageVersion: string): void; identifyUser(userId: string, traits: { [key: string]: any; }): void; logEvent(name: string, properties?: any): void; private getContext; } declare const defaultClient: AnalyticsClient; export default defaultClient;