Clean up API a bit #348

Job	Run time
Build distribution packages	21s
Test with nox (ubuntu-20.04, 3.11, ci_checks_max)	1m 13s
Test with nox (ubuntu-20.04, 3.11, pytest_min)	50s
Cross-arch tests with nox	0s
Test documentation website generation	40s
Cross-arch tests with nox	0s
Test package installation in different architectures	2m 56s
Test with nox	1s
Publish documentation website to GitHub pages	0s
Create GitHub release	0s
Publish packages to PyPI	0s
	6m 1s

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