Fix

Tests/Distribution/NodeFanoutSweep/Server/SensorResource.cs

@@ -0,0 +1,14 @@
+using Esiur.Resource;
+
+/// <summary>
+/// Observable sensor resource. Setting <c>value</c> raises a property-change notification that the
+/// Esiur runtime propagates to every attached subscriber — the fan-out path under measurement.
+/// (The generated property is named <c>Value</c>; subscribers filter on that name.)
+/// </summary>
+[Resource]
+public partial class SensorResource : Resource
+{
+    public int SensorId { get; set; }
+
+    [Export] public double value;
+}