oh dear

mscorlib/System/Diagnostics/Tracing/EventActivityOptions.cs

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+using System;
+using Cpp2IlInjected;
+
+namespace System.Diagnostics.Tracing
+{
+	/// <summary>Specifies the tracking of activity start and stop events.</summary>
+	// Token: 0x02000680 RID: 1664
+	[Token(Token = "0x2000680")]
+	[Flags]
+	public enum EventActivityOptions
+	{
+		/// <summary>Use the default behavior for start and stop tracking.</summary>
+		// Token: 0x04001B53 RID: 6995
+		[Token(Token = "0x4001B53")]
+		None = 0,
+		/// <summary>Turn off start and stop tracking.</summary>
+		// Token: 0x04001B54 RID: 6996
+		[Token(Token = "0x4001B54")]
+		Disable = 2,
+		/// <summary>Allow recursive activity starts. By default, an activity cannot be recursive. That is, a sequence of Start A, Start A, Stop A, Stop A is not allowed. Unintentional recursive activities can occur if the app executes and for some the stop is not reached before another start is called.</summary>
+		// Token: 0x04001B55 RID: 6997
+		[Token(Token = "0x4001B55")]
+		Recursive = 4,
+		/// <summary>Allow overlapping activities. By default, activity starts and stops must be property nested. That is, a sequence of Start A, Start B, Stop A, Stop B is not allowed will result in B stopping at the same time as A.</summary>
+		// Token: 0x04001B56 RID: 6998
+		[Token(Token = "0x4001B56")]
+		Detachable = 8
+	}
+}