Robuta

https://www.boost.org/doc/libs/1_83_0/libs/fusion/doc/html/fusion/algorithm/auxiliary/metafunctions.html

https://www.boost.org/doc/libs/1_87_0/libs/fusion/doc/html/fusion/functional/generation/metafunctions.html

https://www.boost.org/doc/libs/1_80_0/libs/fusion/doc/html/fusion/iterator/metafunctions.html

https://www.boost.org/doc/libs/develop/libs/mpl/doc/refmanual/metafunctions.html

https://www.boost.org/doc/libs/1_67_0/libs/mpl/doc/refmanual/intrinsic-metafunctions.html