I want to pass "base" to a function in a different dll but I can't seem to find the correct syntax. I have tried with (Application base) but can't access CreateWindow ```cs namespace NameOfApp { public partial class App : Application { public App() { InitializeComponent(); MainPage = new AppShell(); } protected override Window CreateWindow(IActivationState activationState) { //this should be handled by the other DLL var window = base.CreateWindow(activationState); // return DifferentDLL.SetCustomSize(base); } } } ```