Get baseline 100% clean coverage #3166

Job	Run time
checks / pre-commit	30s
checks / readme-snippets	12s
checks / test (3.10, lowest-direct, windows-latest)	1m 20s
checks / test (3.10, lowest-direct, ubuntu-latest)	29s
checks / test (3.10, highest, ubuntu-latest)	27s
checks / test (3.11, lowest-direct, windows-latest)	1m 26s
checks / test (3.10, highest, windows-latest)	1m 16s
checks / test (3.11, lowest-direct, ubuntu-latest)	28s
checks / test (3.11, highest, ubuntu-latest)	24s
checks / test (3.12, highest, ubuntu-latest)	24s
checks / test (3.11, highest, windows-latest)	1m 27s
checks / test (3.12, lowest-direct, windows-latest)	1m 27s
checks / test (3.12, lowest-direct, ubuntu-latest)	24s
checks / test (3.13, lowest-direct, ubuntu-latest)	25s
checks / test (3.12, highest, windows-latest)	1m 16s
checks / test (3.13, lowest-direct, windows-latest)	1m 36s
checks / test (3.13, highest, windows-latest)	1m 30s
checks / test (3.13, highest, ubuntu-latest)	27s
	15m 28s

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