HyukjinKwon commented on code in PR #40896:
URL: https://github.com/apache/spark/pull/40896#discussion_r1188193093
##########
python/pyspark/sql/pandas/utils.py:
##########
@@ -84,3 +87,57 @@ def
pyarrow_version_less_than_minimum(minimum_pyarrow_version: str) -> bool:
return False
return LooseVersion(pyarrow.__version__) <
LooseVersion(minimum_pyarrow_version)
+
+
+def barrier(f: Callable) -> Callable:
Review Comment:
If we're going to have this standalone API, this should work together with
other similar API like `groupby().applyInPandas`.
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