pytorch

d4593d9d - document why wrappers exist in `torch.functional` (#62847)

document why wrappers exist in `torch.functional` (#62847) Summary: Fixes https://github.com/pytorch/pytorch/issues/62844. These wrappers are not super obvious, but ultimately stem from the lack of support for functions with variadic args in native_functions.yaml. https://github.com/pytorch/pytorch/issues/62845 tracks that issue. Pull Request resolved: https://github.com/pytorch/pytorch/pull/62847 Reviewed By: VitalyFedyunin Differential Revision: D30305016 Pulled By: dagitses fbshipit-source-id: 716fcecb0417b770bc92cfd8c54f7ead89070896