missing an import on macos, finish polishing benchmarks #521

Job	Run time
Build windows cp37 wheel for x64	8m 19s
Build macos-14 cp38 wheel with cibuildwheel	5m 0s
Build linux cp37 wheel on manylinux_2_28_x86_64	3m 40s
Build windows cp38 wheel for x64	6m 54s
Build macos-14 cp39 wheel with cibuildwheel	2m 28s
Build linux cp38 wheel on manylinux_2_28_x86_64	3m 31s
Build windows cp39 wheel for x64	7m 8s
Build windows-2019 cp39 wheel with cibuildwheel	6m 34s
Build linux cp39 wheel on manylinux_2_28_x86_64	3m 33s
Build windows cp310 wheel for x64	4m 49s
Build windows-2019 cp310 wheel with cibuildwheel	6m 10s
Build linux cp310 wheel on manylinux_2_28_x86_64	3m 32s
Build windows cp311 wheel for x64	5m 8s
Build windows-2019 cp311 wheel with cibuildwheel	6m 31s
Build darwin cp37 wheel on x86_64	4m 26s
Build linux cp311 wheel on manylinux_2_28_x86_64	3m 27s
Build windows cp312 wheel for x64	5m 8s
Build windows-2019 cp312 wheel with cibuildwheel	6m 30s
Build darwin cp38 wheel on x86_64	3m 53s
Build linux cp312 wheel on manylinux_2_28_x86_64	3m 40s
Build windows cp313 wheel for x64	5m 52s
Build windows-2019 cp313 wheel with cibuildwheel	5m 29s
Build darwin cp39 wheel on x86_64	4m 35s
Build linux cp313 wheel on manylinux_2_28_x86_64	3m 6s
Build darwin cp310 wheel on x86_64	3m 41s
Build darwin cp310 wheel on arm64	2m 47s
Build darwin cp311 wheel on x86_64	7m 20s
Build darwin cp311 wheel on arm64	2m 38s
Build darwin cp312 wheel on x86_64	7m 29s
Build darwin cp312 wheel on arm64	2m 55s
Build darwin cp313 wheel on x86_64	6m 33s
Build darwin cp313 wheel on arm64	2m 37s
Package wheels	8s
	2h 35m 31s

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