huaxingao commented on pull request #29119:
URL: https://github.com/apache/spark/pull/29119#issuecomment-658582560


   @kevinyu1949 Thanks for submitting a PR. Actually we intentionally changed 
```labelIndexer.labels``` to ```labelIndexer.labelsArray(0)``` because 
```StringIndexerModel.labels``` is deprecated and will be removed in future 
release. 
   


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