You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: multiwindow.rs
    path of file: ./repos/dioxus/examples
    
    the code of the file until where you have to start completion: //! Multiwindow example
//!
//! This exmaple shows how to implement a simple multiwindow application using dioxus.
//! This works by spawning a new window when the 
    
fn app() -> Element {
    let onclick = move |_| {
        let dom = VirtualDom::new(popup);
        dioxus::desktop::window().new_window(dom, Default::default());
    };

    rsx! {
        button { onclick, "New Window" }
    }
}