Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/10216#discussion_r50784366
--- Diff: python/pyspark/ml/param/__init__.py ---
@@ -40,6 +40,15 @@ def __init__(self, parent, name, doc, expectedType=None):
self.doc = str(doc)
self.expectedType = expectedType
+ def _copy_new_parent(self, parent):
--- End diff --
I hope this can be implemented in class Params instead of Param. In
Params, if we can get a list of all class attributes of type Param, then we can
call this method on them (as is currently done manually by each init method).
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