refactor(lib): apply small refactoring #323

Job	Run time
semver	2m 34s
Check Style	13s
Test with Miri	43s
features	48s
Check MSRV (1.63)	3m 16s
Test stable on ubuntu-latest	35s
Test stable on windows-latest	1m 47s
Test stable on macOS-latest	1m 16s
Test beta on ubuntu-latest	33s
Test beta on windows-latest	1m 16s
Test beta on macOS-latest	1m 42s
Test nightly on ubuntu-latest	35s
Test nightly on windows-latest	1m 17s
Test nightly on macOS-latest	1m 22s
Build docs	15s
CI is green	1s
	18m 13s

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