ChannelsLast3d support is_contiguous, contiguous, suggest_memory_format, caching (#33033)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/33033
Test Plan: Imported from OSS
Differential Revision: D19759661
Pulled By: glaringlee
fbshipit-source-id: 6c4798fa93589338c0c71c5308b9fd1151330245
