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: slider.rs
    path of file: ./repos/cursive/cursive/examples
    
    the code of the file until where you have to start completion: use cursive::traits::*;
use cursive::views::{Dialog, SliderView};
use cursive::Cursive;

fn main() {
    let mut siv = cursive::default();

    siv.add_global_callback('q', |s| s.quit());

    // Let's add a simple slider in a dialog.
    // Moving the slider will update the dialog's title.
    // And pressing "Enter" will show a new dialog.
    siv.add_layer(
        Dialog::around(
            // We give the number of steps in the constructor
            SliderView::horizontal(15)
                // Sets the initial value
                .value(7)
                .on_change(|s, v| {
                    let title = format!("{v: ^5}");
                    s.ca
    
fn main() {
    let mut siv = cursive::default();

    siv.add_global_callback('q', |s| s.quit());

    // Let's add a simple slider in a dialog.
    // Moving the slider will update the dialog's title.
    // And pressing "Enter" will show a new dialog.
    siv.add_layer(
        Dialog::around(
            // We give the number of steps in the constructor
            SliderView::horizontal(15)
                // Sets the initial value
                .value(7)
                .on_change(|s, v| {
                    let title = format!("{v: ^5}");
                    s.call_on_name("dialog", |view: &mut Dialog| {
                        view.set_title(title)
                    });
                })
                .on_enter(|s, v| {
                    s.pop_layer();
                    s.add_layer(
                        Dialog::text(format!("Lucky number {v}!"))
                            .button("Ok", Cursive::quit),
                    );
                }),
        )
        .title("  7  ")
        .with_name("dialog"),
    );

    siv.run();
}