Github user BryanCutler commented on a diff in the pull request:
https://github.com/apache/spark/pull/11621#discussion_r57362618
--- Diff: python/pyspark/ml/wrapper.py ---
@@ -223,3 +223,20 @@ def _call_java(self, name, *args):
sc = SparkContext._active_spark_context
java_args = [_py2java(sc, arg) for arg in args]
return _java2py(sc, m(*java_args))
+
+
+class JavaCallable(object):
--- End diff --
I tried that before and it got a little messy with the definition of
`_java_obj`, but I think I have an idea so let me give it another shot.
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