test

BREAKING CHANGE: refactored into `freeze-code.api` usage #22

Job	Run time
unit tests (ubuntu-latest, nightly)	54s
unit tests (ubuntu-latest, v0.9.0)	55s
unit tests (ubuntu-latest, stable)	56s
unit tests (macos-latest, nightly)	1m 7s
unit tests (macos-latest, v0.9.0)	1m 16s
unit tests (macos-latest, stable)	1m 8s
	6m 16s

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