pub(crate) trait XRSystemMethods<D: DomTypes> {
// Required methods
fn IsSessionSupported(
&self,
mode: XRSessionMode,
_can_gc: CanGc,
) -> Rc<D::Promise>;
fn RequestSession(
&self,
mode: XRSessionMode,
parameters: RootedTraceableBox<XRSessionInit>,
_comp: InRealm<'_>,
_can_gc: CanGc,
) -> Rc<D::Promise>;
fn Test(&self) -> DomRoot<D::XRTest>;
}