namespace System.Runtime.Diagnostics { internal class EventTraceActivity { public Guid ActivityId; public static EventTraceActivity Empty { get; } public static string Name { get; } public EventTraceActivity(bool setOnThread = false); public EventTraceActivity(Guid guid, bool setOnThread = false); public static EventTraceActivity GetFromThreadOrCreate(bool clearIdOnThread = false); public static Guid GetActivityIdFromThread(); } }