public void UpdateMetrics(OpcConversation conv)
        {
            string measurement    = conv.GetMessageType().ToString();
            ulong  timedifference = conv.CalculateTimeDifference();
            long   timestamp      = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();

            switch (conv.GetMessageType())
            {
            case OpcMessageType.ReadResponse:
                ReadRequest.Set(timedifference);
                break;

            case OpcMessageType.BrowseResponse:
                BrowseRequest.Set(timedifference);
                break;

            case OpcMessageType.CallResponse:
                CallRequest.Set(timedifference);
                break;
            }
            ReadRequest.Set(timedifference);
        }