namespace AppKit
{
    [Register("NSOutlineView", true)]
    [SupportedOSPlatform("macos")]
    [UnsupportedOSPlatform("maccatalyst")]
    public class NSOutlineView : NSTableView, INSAccessibilityElementProtocol, INSAccessibilityGroup, INSAccessibilityOutline, INSAccessibilityTable, INativeObject, IDisposable
    {
        public static class Notifications
        {
            public static NSObject! ObserveColumnDidMove(NSObject! objectToObserve, EventHandler<NSViewColumnMoveEventArgs!>! handler);
        }
    }
}