{"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"mve.for_each_metavar((),"}]}
            mve.for_each_metavar((), |_, ident| {
        TokenTree::MetaVarExpr(dl, ref mve) => {
                let name = MacroRulesNormalizedIdent::new(*ident);