Interface Client

interface Client {
    all(): Variants;
    clear(): void;
    exposure(key: string): void;
    fetch(user?: ExperimentUser, options?: FetchOptions): Promise<Client>;
    getUser(): ExperimentUser;
    getUserProvider(): ExperimentUserProvider;
    setUser(user: ExperimentUser): void;
    setUserProvider(userProvider: ExperimentUserProvider): Client;
    start(user?: ExperimentUser): Promise<void>;
    stop(): void;
    variant(key: string, fallback?: string | Variant): Variant;
}