pub trait BundleExt {
// Required method
fn add_bundle<F>(&mut self, func: F) -> &mut Self
where F: FnOnce(&mut Self),
Self: Sized;
}pub trait BundleExt {
// Required method
fn add_bundle<F>(&mut self, func: F) -> &mut Self
where F: FnOnce(&mut Self),
Self: Sized;
}