.

src/Runner.Listener/MessageRef.cs

@@ -0,0 +1,11 @@
+using System.Runtime.Serialization;
+
+namespace GitHub.Runner.Listener
+{
+    [DataContract]
+    public sealed class MessageRef
+    {
+        [DataMember(Name = "id")]
+        public string Id { get; set; }
+    }
+}