Github user ajaysaini725 commented on a diff in the pull request: https://github.com/apache/spark/pull/18742#discussion_r131017418 --- Diff: python/pyspark/ml/util.py --- @@ -61,32 +66,82 @@ def _randomUID(cls): @inherit_doc -class MLWriter(object): +class BaseReadWrite(object): + """ + Base class for MLWriter and MLReader. Stores information about the SparkContext + and SparkSession. + + .. versionadded:: 2.3.0 + """ + + def __init__(self): + self.sparkSession = None + + def context(self, sqlContext): --- End diff -- Yeah it isn't used I just included the function definition because JavaMLWriter which inherits from MLWriter which inherits from BaseReadWrite uses it. I changed the function body to give a NotImplementedError though.
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