/// <summary>
        /// Send the reverse metadata from game server to the agent. This should be called when the game wants to update the metadata. Thread-safe.
        /// </summary>
        /// <param name="map">Current map.</param>
        /// <param name="mode">Current mode.</param>
        /// <param name="type">Current type.</param>
        public void SendReverseMetadata(string map,
                                        string mode,
                                        string type)
        {
            int code;

            using (var data = new OneArray())
                using (var mapObject = new OneObject())
                    using (var modeObject = new OneObject())
                        using (var typeObject = new OneObject())
                            using (var map1 = new Utf8ByteArray(map))
                                using (var mode1 = new Utf8ByteArray(mode))
                                    using (var type1 = new Utf8ByteArray(type))
                                    {
                                        mapObject.SetString("key", "map");
                                        mapObject.SetString("value", map1.ToString());
                                        modeObject.SetString("key", "mode");
                                        modeObject.SetString("value", mode1.ToString());
                                        typeObject.SetString("key", "type");
                                        typeObject.SetString("value", type1.ToString());
                                        data.PushObject(mapObject);
                                        data.PushObject(modeObject);
                                        data.PushObject(typeObject);
                                        code = one_server_send_reverse_metadata(_ptr, data.Ptr);
                                    }

            OneErrorValidator.Validate(code);
        }