https://en.cppreference.com/w/cpp/utility/optional.html https://en.cppreference.com/w/cpp/utility/optional.html Remove the examples and then make sense of _ANY_

https://en.cppreference.com/w/cpp/utility/optional.html https://en.cppreference.com/w/cpp/utility/optional.html Remove the examples and then make sense of _ANY_ of that documentation.