Boost Variant:如何建模JSON？

#include<boost/variant.hpp>

using JsonValue = boost::variant<int, double, std::string, bool, std::vector<JsonValue>, std::map<std::string, JsonValue>>;

{
  "name": "John",
  "age": 30,
  "isMarried": true,
  "hobbies": ["reading", "traveling"],
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "state": "NY"
  }
}

JsonValue person{
  std::map<std::string, JsonValue>{
    {"name", "John"},
    {"age", 30},
    {"isMarried", true},
    {"hobbies", std::vector<JsonValue>{"reading", "traveling"}},
    {"address", std::map<std::string, JsonValue>{
      {"street", "123 Main St"},
      {"city", "New York"},
      {"state", "NY"}
    }}
  }
};

int age = boost::get<int>(person["age"]);