Clean up API a bit #350

Job	Run time
Build distribution packages	17s
Test with nox (ubuntu-20.04, 3.11, ci_checks_max)	1m 27s
Test documentation website generation	45s
Test with nox (ubuntu-20.04, 3.11, pytest_min)	57s
Cross-arch tests with nox	0s
Cross-arch tests with nox	0s
Test package installation in different architectures	3m 24s
Test with nox	1s
Publish documentation website to GitHub pages	0s
Create GitHub release	0s
Publish packages to PyPI	0s
	6m 51s

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