cc: fix returning type of sel_types #4671

Job	Run time
Build source distribution	26s
determine-arm64-runner	1s
Build wheels for cp311-manylinux_x86_64	5m 32s
Build wheels for cp311-manylinux_x86_64	5m 23s
Build wheels for cp311-macosx_x86_64	5m 18s
Build wheels for cp311-macosx_arm64	5m 5s
Build wheels for cp311-win_amd64	5m 0s
Build wheels for cp310-manylinux_aarch64	4m 20s
build_pypi_index	10s
build_docker (12)	2m 30s
build_docker (_cu11, 11)	2m 57s
upload_pypi	0s
deploy_pypi_index	0s
Pass testing build wheels	2s
	36m 44s

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