{"ast_node_type":"function","tokens":[{"end":56,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn new_box_ty(&self, ty: Ty<'tcx>) -> Ty<'tcx> {
    /// Create a new box type, `Box<T>`, for the given inner type `T`.
        ty::Ty::new_box(self.tcx, ty)