oh dear

System/ComponentModel/CollectionChangeEventHandler.cs

@@ -0,0 +1,13 @@
+using System;
+using Cpp2IlInjected;
+
+namespace System.ComponentModel
+{
+	/// <summary>Represents the method that handles the <see cref="E:System.Data.DataColumnCollection.CollectionChanged" /> event raised when adding elements to or removing elements from a collection.</summary>
+	/// <param name="sender">The source of the event.</param>
+	/// <param name="e">A <see cref="T:System.ComponentModel.CollectionChangeEventArgs" /> that contains the event data.</param>
+	// Token: 0x020000F9 RID: 249
+	// (Invoke) Token: 0x06000617 RID: 1559
+	[Token(Token = "0x20000F9")]
+	public delegate void CollectionChangeEventHandler(object sender, CollectionChangeEventArgs e);
+}