{"ast_node_type":"variable","tokens":[{"end":39,"kind":"keyword","start":0,"text":"let"}]}
        let mut forward_const_ban_rib =
            Rib::new(RibKind::ForwardGenericParamBan(ForwardGenericParamBanReason::Default));
            Rib::new(RibKind::ForwardGenericParamBan(ForwardGenericParamBanReason::Default));