[Pytorch] Better doc strings for bundled inputs (#56591)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/56591
title
ghstack-source-id: 128926699
Test Plan: na
Reviewed By: dreiss
Differential Revision: D27912185
fbshipit-source-id: 1a8f267af21afb7b4393b9ec0792dd17c48e57cb