{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"Some((_,"}]}
                Some((_, ed)) => quote! { #kw if edition < #ed },
            match grammar.edition_dependent_keywords.iter().find(|(ed_kw, _)| ed_kw == kw_s) {
                None => quote! { #kw },