[SPARK-46413][PYTHON] Validate returnType of Arrow Python UDF #44362
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What changes were proposed in this pull request?
Validate returnType of Arrow Python UDF
Why are the changes needed?
Better error handling and consistency with other types of UDFs.
Does this PR introduce any user-facing change?
Yes, now we raise an error when the given returnType is not supported.
How was this patch tested?
Unit tests.
Was this patch authored or co-authored using generative AI tooling?
No.