zhengruifeng commented on code in PR #53974:
URL: https://github.com/apache/spark/pull/53974#discussion_r2731032691
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python/pyspark/worker.py:
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@@ -3149,15 +3153,17 @@ def batch_from_offset(batch, offsets):
names=[batch.schema.names[o] for o in offsets],
)
- def mapper(a):
- batch_iter = iter(a)
+ def mapper(batches):
Review Comment:
since we are reimplementing these functions, can we enforce type hint here?
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