pub trait XRViewportMethods<D>where
    D: DomTypes,{
    // Required methods
    fn X(&self) -> i32;
    fn Y(&self) -> i32;
    fn Width(&self) -> i32;
    fn Height(&self) -> i32;
}pub trait XRViewportMethods<D>where
    D: DomTypes,{
    // Required methods
    fn X(&self) -> i32;
    fn Y(&self) -> i32;
    fn Width(&self) -> i32;
    fn Height(&self) -> i32;
}