namespace QuickLookUI
{
    [Model]
    [Protocol]
    [Register("QLPreviewPanelDataSource", false)]
    public abstract class QLPreviewPanelDataSource : NSObject, INativeObject, IQLPreviewPanelDataSource, IDisposable
    {
        [BindingImpl(BindingImplOptions.GeneratedCode | BindingImplOptions.Optimizable)]
        [Export("numberOfPreviewItemsInPreviewPanel:")]
        public abstract nint NumberOfPreviewItemsInPreviewPanel(QLPreviewPanel! panel);
    }
}