test

                         const uuid::uuid &uid, int dataType,

                         const AuthData *records = nullptr);

        // List all sessions from the dedicated session store (local + imported).

        struct SessionInfo {

            uuid::uuid sid, uid, did;

            std::vector<uuid::uuid> members;

            std::string username;

            std::vector<std::pair<uuid::uuid, bool>> gpo_results;

        };

        void listAllSessions(std::vector<SessionInfo> &out);

    private:

        ClusterConfig cfg_;

        std::atomic<bool> running_{false};

        std::thread server_thread_;

        std::shared_ptr<paritypp::block_store> store_;

        std::shared_ptr<paritypp::memory_block_store> session_store_; // sessions only

        std::shared_ptr<paritypp::auth_store> auth_;

        std::unique_ptr<paritypp::server> server_;