A `std::tuple` is not a container in the STL sense (it also doesn't provide iterators and you can't add or delete elements from it), so there is no issue in tha

A `std::tuple` is not a container in the STL sense (it also doesn't provide iterators and you can't add or delete elements from it), so there is no issue in that regard. For example, `std::tie()` is a function in the standard library that returns a tuple of references.