GitHub user ikrommyd added a comment to the discussion: Iterating over parquet 
dataset in batches

Ah....looking at the source code, I found this: 
https://github.com/apache/arrow/blob/7623887f0aaef84c3f1fc209fd3f054feeeba753/python/pyarrow/parquet/core.py#L134.
 It's not in the documentation but looks "public" enough as it is accessible 
like `pyarrow.parquet.filters_to_expression`

GitHub link: 
https://github.com/apache/arrow/discussions/47988#discussioncomment-14808041

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