{"ast_node_type":"variable","tokens":[{"end":40,"kind":"keyword","start":0,"text":"let"}]}
        let node = match &pattern.kind {
        let pat_hir_id = self.lower_node_id(pattern.id);
            TyPatKind::Range(e1, e2, Spanned { node: end, span }) => hir::TyPatKind::Range(