pub trait ServiceWorkerContainerMethods<D: DomTypes> {
// Required methods
fn GetController(&self) -> Option<DomRoot<D::ServiceWorker>>;
fn Register(
&self,
realm: &mut CurrentRealm<'_>,
scriptURL: USVString,
options: &RegistrationOptions,
_can_gc: CanGc,
) -> Rc<D::Promise>;
}