{"ast_node_type":"variable","tokens":[{"end":64,"kind":"keyword","start":0,"text":"let"}]}
        let path = hir::ExprKind::Path(hir::QPath::TypeRelative(
        let qpath = self.make_lang_item_qpath(lang_item, self.lower_span(span), None);
            self.arena.alloc(self.ty(span, hir::TyKind::Path(qpath))),