356 struct adl_serializer<std::shared_ptr<T>>  struct
358     static void to_json(json& j, const std::shared_ptr<T>& opt)  in to_json()
370     static void from_json(const json& j, std::shared_ptr<T>& opt)  in from_json()
384 struct adl_serializer<udt::legacy_type>  struct
386     static void to_json(json& j, const udt::legacy_type& l)  in to_json()
391     static void from_json(const json& j, udt::legacy_type& l)  in from_json()
453 struct adl_serializer<std::vector<float>>  struct
455     using type = std::vector<float>;
456     static void to_json(json& j, const type&)  in to_json()
461     static void from_json(const json&, type& opt)  in from_json()
467     static type from_json(const json&)  in from_json()
486 struct adl_serializer<std::unique_ptr<T>>  struct
488     static void to_json(json& j, const std::unique_ptr<T>& opt)  in to_json()
501     static std::unique_ptr<T> from_json(const json& j)  in from_json()