144 struct LabeledTuple<std::tuple<Args...>, Labels...>  struct
148     using tuple_type = std::tuple<Args...>;
154     explicit LabeledTuple(tuple_type v) : value(std::move(v)) {}  in LabeledTuple()  argument
155     LabeledTuple(Args... args) : value(std::move(args)...) {}  in LabeledTuple()  function
160     nlohmann::json to_json() const  in to_json()
167     const tuple_type& to_tuple() const  in to_tuple()
172     void from_json(const nlohmann::json& j)  in from_json()
177     std::string dump() const  in dump()
183     const auto& at_index() const  in at_index()
189     auto& at_index()  in at_index()
195     const auto& at_label() const  in at_label()
201     auto& at_label()  in at_label()
206     bool operator==(const LabeledTuple& other) const  in operator ==()
219     bool operator<(const LabeledTuple& other) const  in operator <()
226     void to_json_all(nlohmann::json& j, std::index_sequence<Idx...>) const  in to_json_all()
232     void to_json_item(nlohmann::json& j) const  in to_json_item()
248     void from_json_all(const nlohmann::json& j, std::index_sequence<Idx...>)  in from_json_all()
254     void from_json_item(const nlohmann::json& j)  in from_json_item()
271     static auto& find_item(Self& self)  in find_item()
286     tuple_type value;