pub(crate) trait ServiceWorkerContainerMethods<D>where
    D: DomTypes,{
    // Required methods
    fn GetController(&self) -> Option<Root<Dom<<D as DomTypes>::ServiceWorker>>>;
    fn Register(
        &self,
        scriptURL: USVString,
        options: &RegistrationOptions,
        _comp: InRealm<'_>,
        _can_gc: CanGc,
    ) -> Rc<<D as DomTypes>::Promise>;
}