pytorch

79783a51 - [torchgen] Loosen the restriction for only allowing 2 nested namespaces for kernels (#94834)

[torchgen] Loosen the restriction for only allowing 2 nested namespaces for kernels (#94834) As titled. We still want to have some restriction to avoid misuse but for internal use case we want to change the limit from 2 to 3. Pull Request resolved: https://github.com/pytorch/pytorch/pull/94834 Approved by: https://github.com/SS-JIA