tuple_map / tuple_concat (#42326)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/42326
ghstack-source-id: 108868289
Test Plan: Unit tests
Reviewed By: smessmer
Differential Revision: D22846504
fbshipit-source-id: fa9539d16e21996bbd80db3e3c524b174b22069e
