Remove type casting of field data #639

Job	Run time
mypy	3m 24s
py3.13 \| macos \| unit tests	8m 49s
py3.13 \| macos \| integration tests	10m 21s
py3.13 \| ubuntu \| unit tests	9m 1s
py3.13 \| ubuntu \| integration tests	10m 12s
py3.13 \| windows \| unit tests	12m 19s
py3.13 \| windows \| integration tests	19m 9s
py3.10 \| ubuntu \| unit tests	10m 8s
py3.10 \| ubuntu \| integration tests	10m 12s
py3.11 \| ubuntu \| unit tests	9m 39s
py3.12 \| ubuntu \| unit tests	9m 38s
merge-test-artifacts	0s
	1h 52m 52s

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