=     hash_value(elle::das::make_tuple(foo = 0, bar = std::string("lol"))));   BOOST_TEST(     hash_value(elle::das::make_tuple(foo = 0, bar = std::string("lol"))) !=     hash_value(elle::das::make_tuple(foo = 0, bar = std::string("lol"))));   BOOST_TEST(     hash_value(elle::das::make_tuple(foo = 0, bar = std::string("lol"))) !=     hash_value(elle::das::make_tuple(foo = 0, bar = std::string("bar"))));   BOOST_TEST(     hash_value(elle::das::make_tuple(foo = 0, bar = std::string("lol"))) !=     hash_value(elle::das::make_tuple(