pytorch

59c6ceb6 - add documentation to shape inference algorithm (#64312)

add documentation to shape inference algorithm (#64312) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/64312 Test Plan: Imported from OSS Reviewed By: zou3519 Differential Revision: D30709254 Pulled By: migeed-z fbshipit-source-id: 3297d26fe6727c5b9ca176625b1683d787f59659