oh dear

mscorlib/System/Threading/Timeout.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Runtime.InteropServices;
+using Cpp2IlInjected;
+
+namespace System.Threading
+{
+	/// <summary>Contains constants that specify infinite time-out intervals. This class cannot be inherited.</summary>
+	// Token: 0x02000344 RID: 836
+	[Token(Token = "0x2000344")]
+	[ComVisible(true)]
+	public static class Timeout
+	{
+		/// <summary>A constant used to specify an infinite waiting period, for methods that accept a <see cref="T:System.TimeSpan" /> parameter.</summary>
+		// Token: 0x04001116 RID: 4374
+		[Token(Token = "0x4001116")]
+		[ComVisible(false)]
+		public static readonly TimeSpan InfiniteTimeSpan;
+	}
+}