zhengruifeng commented on code in PR #49763:
URL: https://github.com/apache/spark/pull/49763#discussion_r1938433532
##########
mllib/src/main/scala/org/apache/spark/ml/fpm/PrefixSpan.scala:
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@@ -167,3 +170,27 @@ final class PrefixSpan(@Since("2.4.0") override val uid:
String) extends Params
override def copy(extra: ParamMap): PrefixSpan = defaultCopy(extra)
}
+
+private[spark] class PrefixSpanWrapper(override val uid: String)
Review Comment:
`PrefixSpan` is not a transformer or estimator, add such wrapper so that it
can be treated as a transformer on spark connect
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