Remove type casting of field data #649

Job	Run time
mypy	3m 38s
py3.13 \| macos \| integration tests	10m 9s
py3.13 \| macos \| unit tests	7m 55s
py3.13 \| ubuntu \| integration tests	13m 20s
py3.13 \| ubuntu \| unit tests	9m 30s
py3.13 \| windows \| integration tests	24m 22s
py3.13 \| windows \| unit tests	13m 0s
py3.10 \| ubuntu \| integration tests	19m 6s
py3.10 \| ubuntu \| unit tests	10m 15s
py3.11 \| ubuntu \| unit tests	9m 55s
py3.12 \| ubuntu \| unit tests	9m 56s
merge-test-artifacts	3s
	2h 11m 9s

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