public FIFOMessage ReadMessage(string messageHeader)
    {
        FIFOMessage returnMessage = ParentQueue[0];

        ParentQueue.Remove(returnMessage);
        return(returnMessage);
    }
 public QueueResponse WriteMessage(FIFOMessage fifoMessage)
 {
     ParentQueue.Add(fifoMessage);
     return(QueueResponse.Success);
 }