如果我的实例是stl map，我如何获取模板的类型？

#include <map>
#include <typeinfo>

int main() {
    std::map<int, std::string> myMap;
    using KeyType = decltype(myMap)::key_type;
    using ValueType = decltype(myMap)::mapped_type;

    std::cout << "Key type: " << typeid(KeyType).name() << std::endl;
    std::cout << "Value type: " << typeid(ValueType).name() << std::endl;

    return 0;
}