text: #include <boost/uuid/uuid.hpp>
  #include <boost/uuid/uuid_generators.hpp>
  #include <iostream>
  
  using namespace boost::uuids;
  
  int main()
  {
    random_generator gen;
    uuid id = gen();
    std::cout << id.size() << '\n';
    std::cout << std::boolalpha << id.is_nil() << '\n';
    std::cout << id.variant() << '\n';
    std::cout << id.version() << '\n';
  }