pytorch

63e16216 - [c10d] Implement `__instancecheck__` for `c10d::ReduceOp` (#88275)

[c10d] Implement `__instancecheck__` for `c10d::ReduceOp` (#88275) Summary: - Customize the metaclass of `torch.distributed.distributed_c10d.ReduceOp` for the sake of custom `__instancecheck__` - Add `copy.copy`, `copy.deepcopy`, and `pickle` support with tests Rel: - #81272 - #84243 - #87191 - #87303 - #87555 Ref: - https://github.com/pybind/pybind11/issues/2696 Pull Request resolved: https://github.com/pytorch/pytorch/pull/88275 Approved by: https://github.com/wanchaol