diff --git a/src/WinUIEx/WindowManager.cs b/src/WinUIEx/WindowManager.cs
index ca31e1d..883d2d6 100644
--- a/src/WinUIEx/WindowManager.cs
+++ b/src/WinUIEx/WindowManager.cs
@@ -39,6 +39,9 @@ private static bool TryGetWindowManager(Window window, [MaybeNullWhen(false)] ou
             return false;
         }
 
+        public string NewStringProperty { get; set; }
+        public void NewMethod() { }
+
         /// <summary>
         /// Gets (or creates) a window manager for the specific window.
         /// </summary>
@@ -623,8 +626,14 @@ public Microsoft.UI.Windowing.AppWindowPresenterKind PresenterKind
         /// <summary>
         /// Raised if the Z order of the window changes.
         /// </summary>
-        public event EventHandler<ZOrderInfo>? ZOrderChanged;
+        internal event EventHandler<ZOrderInfo>? ZOrderChanged;
+
+    }
 
+    public class NewClass
+    {
+        public NewClass(string name) { Name = name; }
+        public string Name { get; }
     }
 
     /// <summary>