{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":".map(|(flag,"}]}
                .map(|(flag, _)| format!("{e}. Did you mean `-{flag} {opt}`?")),
                .find(|&(_, name)| *opt == name.replace('_', "-"))
            getopts::Fail::ArgumentMissing(ref opt) => {