CI

refactor: refactor types #452

# to view logs

Run time

Learn about OS # on GitHub Actions

Job	Run time
linter	2m 41s
tester (ubuntu-latest, 14)	35s
tester (ubuntu-latest, 16)	37s
tester (ubuntu-latest, 18)	38s
tester (windows-latest, 14)	3m 24s
tester (windows-latest, 16)	1m 15s
tester (windows-latest, 18)	1m 18s
tester (macos-latest, 14)	7s
tester (macos-latest, 16)	2m 49s
tester (macos-latest, 18)	42s
coveralls	5s
	14m 11s