Extract feature length information from ClipRangesGatherSigridHash (#19704)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19704
Extract feature length information from ClipRangesGatherSigridHash
Reviewed By: ipiszy
Differential Revision: D15075047
fbshipit-source-id: f70f61b7910515df5c47a042ac7afa523dbdb02a
