{"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"features.iter().map(|s|"}]}
            features.iter().map(|s| &s[..]).rfind(|n| ["+mte", "-mte"].contains(&&n[..]));
        let mte_feature =
        if let None | Some("-mte") = mte_feature {