Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/18428#discussion_r125176344
--- Diff: python/pyspark/ml/tuning.py ---
@@ -263,8 +301,60 @@ def copy(self, extra=None):
newCV.setEvaluator(self.getEvaluator().copy(extra))
return newCV
+ @since("2.3.0")
+ def write(self):
+ """Returns an MLWriter instance for this ML instance."""
+ return JavaMLWriter(self)
+
+ @since("2.3.0")
+ def save(self, path):
--- End diff --
no need to copy this here; it can use the one in MLWritable
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