Removing explicit field chunking #630

Job	Run time
py3.13 \| macos \| integration tests	10m 54s
py3.13 \| macos \| unit tests	6m 40s
mypy	3m 22s
py3.13 \| ubuntu \| integration tests	13m 29s
py3.13 \| ubuntu \| unit tests	9m 19s
py3.13 \| windows \| integration tests	24m 24s
py3.13 \| windows \| unit tests	14m 4s
py3.10 \| ubuntu \| integration tests	13m 51s
py3.10 \| ubuntu \| unit tests	10m 5s
py3.11 \| ubuntu \| unit tests	9m 49s
py3.12 \| ubuntu \| unit tests	9m 38s
merge-test-artifacts	2s
	2h 5m 37s

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