export declare const useIsJoinedGroup: (groupId?: string) => {
    isJoined: boolean | null;
    isError: boolean;
    refetch: (options?: import("@tanstack/react-query").RefetchOptions) => Promise<import("@tanstack/react-query").QueryObserverResult<boolean, Error>>;
};
//# sourceMappingURL=useIsJoinedGroup.d.ts.map