[GitHub] [spark] WeichenXu123 commented on pull request #40896: [SPARK-43229][ML][PYTHON][CONNECT] Introduce Barrier Python UDF

["WeichenXu123 (via GitHub)" <gi...@apache.org>]

WeichenXu123 commented on PR #40896:
URL: https://github.com/apache/spark/pull/40896#issuecomment-1526988838

   > This PR will not add a user-facing API or Parameter or Annotation, instead only a private function attribute will be added
   
   Q: Where is related doc and example usage code for this attribute ? 
   
   Q2: Why it is not a user-facing attribute ? We have 3rd-party library xgboost-spark that uses "barrier mode" and we need to make xgboost-spark supports pyspark-connect mode.


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