/// <summary>
 /// Directs the application to listen at the designated port in a
 /// durable way
 /// </summary>
 /// <param name="expression"></param>
 /// <param name="port"></param>
 public static void DurableListenerAt(this ITransportsExpression expression, int port)
 {
     expression.ListenForMessagesFrom($"tcp://localhost:{port}/durable");
 }
 /// <summary>
 /// Directs the application to listen at the designated port in a
 /// fast, but non-durable way
 /// </summary>
 /// <param name="expression"></param>
 /// <param name="port"></param>
 public static void LightweightListenerAt(this ITransportsExpression expression, int port)
 {
     expression.ListenForMessagesFrom($"tcp://localhost:{port}");
 }