How can I serialize user-defined class Person

[yuzu-ogura]

This is my ADT Person:
struct Person
{
int age = 0;
std::string name = "Tom";
};

How to serialize to a map like below by tree << person;

        age: 0
        name: Tom

[crackedmind]

void write(ryml::NodeRef *n, Person const& val)
{
    *n |= ryml::MAP;
    (*n)["name"] << val.name;
    (*n)["age"] << val.age;
}