Fix typing issues (#29) #96

Job	Run time
Build on MacOS (x86_64)	1m 6s
Build on MacOS (aarch64)	31s
lint	1m 19s
Build on Linux (x86_64, auto)	1m 31s
Build on Windows (x64)	2m 1s
Build on Linux (x86, auto)	1m 3s
Build on Windows (x86)	2m 37s
Build on Linux (aarch64, auto)	2m 1s
Build on Linux (armv7, auto)	1m 26s
sdist	15s
Build on Linux (s390x, auto)	1m 12s
Build on Linux (ppc64le, auto)	1m 15s
Build on Linux (x86_64, musllinux_1_1)	57s
Build on Linux (aarch64, musllinux_1_1)	45s
checks	6s
list-wheels	7s
Release	42s
	18m 54s

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