tests

tests #541

Job	Run time
Tests (8.1, ubuntu-latest, prefer-lowest)	13s
Tests (8.1, ubuntu-latest, prefer-stable)	22s
Tests (8.1, macos-latest, prefer-lowest)	1m 15s
Tests (8.1, macos-latest, prefer-stable)	1m 13s
Tests (8.1, windows-latest, prefer-lowest)	36s
Tests (8.1, windows-latest, prefer-stable)	41s
Tests (8.2, ubuntu-latest, prefer-lowest)	22s
Tests (8.2, ubuntu-latest, prefer-stable)	13s
Tests (8.2, macos-latest, prefer-lowest)	1m 19s
Tests (8.2, macos-latest, prefer-stable)	1m 18s
Tests (8.2, windows-latest, prefer-lowest)	44s
Tests (8.2, windows-latest, prefer-stable)	43s
Tests (8.3, ubuntu-latest, prefer-lowest)	14s
Tests (8.3, ubuntu-latest, prefer-stable)	25s
Tests (8.3, macos-latest, prefer-lowest)	1m 6s
Tests (8.3, macos-latest, prefer-stable)	1m 13s
Tests (8.3, windows-latest, prefer-lowest)	35s
Tests (8.3, windows-latest, prefer-stable)	42s
Tests (8.4, ubuntu-latest, prefer-lowest)	26s
Tests (8.4, ubuntu-latest, prefer-stable)	20s
Tests (8.4, macos-latest, prefer-lowest)	1m 12s
Tests (8.4, macos-latest, prefer-stable)	1m 15s
Tests (8.4, windows-latest, prefer-lowest)	34s
Tests (8.4, windows-latest, prefer-stable)	46s
	17m 47s

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