pub trait ClipboardMethods<D>where
    D: DomTypes,{
    // Required methods
    fn ReadText(&self, _can_gc: CanGc) -> Rc<<D as DomTypes>::Promise>;
    fn WriteText(
        &self,
        data: DOMString,
        _can_gc: CanGc,
    ) -> Rc<<D as DomTypes>::Promise>;
}