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The reverted PR results from we built pytorch with abi on and built pytorch/xla with abi off, hence the TPU CI error "ImportError: /usr/local/lib/python3.10/site-packages/_XLAC.cpython-310-x86_64-linux-gnu.so: undefined symbol: _ZN5torch4lazy13MetricFnValueEd". We had the similar gh issue before.
I'll make sure the TPU CI is green before submitting the PR.