Merge pull request #212 from stewartboogert/convertMultiUnion #803

Job	Run time
Test in Docker container	8m 23s
Calculate and upload test coverage	11m 5s
Test with Python (3.9, ubuntu-latest)	9m 3s
Test with Python (3.9, macOS-latest)	10m 52s
Test with Python (3.9, windows-latest)	18m 24s
Test with Python (3.10, ubuntu-latest)	8m 46s
Test with Python (3.10, macOS-latest)	9m 15s
Test with Python (3.10, windows-latest)	19m 4s
Test with Python (3.11, ubuntu-latest)	9m 31s
Test with Python (3.11, macOS-latest)	9m 11s
Test with Python (3.11, windows-latest)	19m 26s
Test with Python (3.12, ubuntu-latest)	9m 58s
Test with Python (3.12, macOS-latest)	12m 3s
Test with Python (3.12, windows-latest)	16m 1s
	2h 51m 2s

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