oh dear

mscorlib/System/EventHandler.2.cs

@@ -0,0 +1,15 @@
+using System;
+using Cpp2IlInjected;
+
+namespace System
+{
+	/// <summary>Represents the method that will handle an event when the event provides data.</summary>
+	/// <param name="sender">The source of the event.</param>
+	/// <param name="e">An object that contains the event data.</param>
+	/// <typeparam name="TEventArgs">The type of the event data generated by the event.</typeparam>
+	// Token: 0x020000E4 RID: 228
+	// (Invoke) Token: 0x060008A3 RID: 2211
+	[Token(Token = "0x20000E4")]
+	[Serializable]
+	public delegate void EventHandler<TEventArgs>(object sender, TEventArgs e);
+}