Handle None. #218

Job	Run time
compute-matrix	3s
checks / other-checks	31s
checks / check-style	39s
build-conda / compute-matrix	2s
build-wheels / compute-matrix	2s
build-conda / build (12.0.1, amd64, 3.9, centos7)	1m 56s
build-conda / build (12.0.1, amd64, 3.10, centos7)	1m 51s
build-conda / build (12.0.1, amd64, 3.11, centos7)	1m 57s
build-conda / build (12.0.1, arm64, 3.9, rockylinux8)	1m 51s
build-conda / build (12.0.1, arm64, 3.10, rockylinux8)	2m 38s
build-conda / build (12.0.1, arm64, 3.11, rockylinux8)	2m 43s
build-wheels / 12.0.1, 3.9, amd64, centos7	7m 54s
build-wheels / 12.0.1, 3.10, amd64, centos7	7m 54s
build-wheels / 12.0.1, 3.11, amd64, centos7	7m 39s
build-wheels / 12.0.1, 3.9, arm64, rockylinux8	8m 1s
build-wheels / 12.0.1, 3.10, arm64, rockylinux8	8m 0s
build-wheels / 12.0.1, 3.11, arm64, rockylinux8	7m 38s
test-conda	0s
test-wheels / compute-matrix	4s
test-wheels / 12.0.1, 3.9, amd64, ubuntu20.04, v100	1s
test-wheels / 12.0.1, 3.10, amd64, ubuntu20.04, v100	1s
test-wheels / 12.0.1, 3.11, amd64, ubuntu20.04, v100	1s
test-wheels / 12.0.1, 3.9, arm64, ubuntu20.04, a100	27s
test-wheels / 12.0.1, 3.10, arm64, ubuntu20.04, a100	27s
test-wheels / 12.0.1, 3.11, arm64, ubuntu20.04, a100	28s
pr-builder	1s
	1h 2m 49s

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