Refactor utils #1081

Job	Run time
Generate comparison results	2m 47s
Test source with coverage	9m 23s
Test package (3.11 on ubuntu-latest)	4m 46s
Test package (3.11 on macos-latest)	8m 9s
Test package (3.10 on ubuntu-latest)	3m 47s
Test package (3.10 on macos-latest)	8m 3s
Test package (3.10 on windows-latest)	7m 41s
Test package (3.9 on ubuntu-latest)	4m 49s
Test package (3.9 on macos-latest)	5m 5s
Test package (3.9 on windows-latest)	6m 31s
Test package (3.8 on ubuntu-latest)	3m 43s
Test package (3.8 on macos-latest)	6m 29s
	1h 11m 13s

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