use gpui::{div, img, prelude::*, App, Application, Context, Render, Window, WindowOptions};use std::path::PathBuf; struct GifViewer {    gif_path: PathBuf,} impl GifViewer {    fn new(gif_path: PathBuf) -> Self {        Self { gif_path }    }} impl Render for GifViewer {    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {        div().size_full().child(            img(self.gif_path.clone())                .size_full()                .object_fit(gpui::ObjectFit::Contain)                .id("gif"),        )    }} fn main() {    env_logger::init();    Application::new().run(|cx: &mut App| {        let gif_path =            PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("examples/image/black-cat-typing.gif");         cx.open_window(            WindowOptions {                focus: true,                ..Default::default()            },            |_, cx| cx.new(|_| GifViewer::new(gif_path)),        )        .unwrap();        cx.activate(true);    });}