# System.Diagnostics

``` diff
 namespace System.Diagnostics {
     public class Activity : IDisposable {
+        public ActivityStatusCode Status { get; }
+        public string StatusDescription { get; }
+        public static Func<ActivityTraceId> TraceIdGenerator { get; set; }
+        public object GetTagItem(string key);
+        public Activity SetStatus(ActivityStatusCode code, string description = null);
     }
+    public enum ActivityStatusCode {
+        Error = 2,
+        Ok = 1,
+        Unset = 0,
+    }
 }
```

