Can't load PipelineModel that was created in Scala with Python due to missing Interaction transformer

The Interaction transformer https://github.com/apache/spark/blob/master/mllib/src/main/scala/org/apache/spark/ml/feature/Interaction.scala is missing from the set of pyspark feature transformers https://github.com/apache/spark/blob/master/python/pyspark/ml/feature.py 

This means that it is impossible to create a model that includes an Interaction transformer with pyspark. It also means that attempting to load a PipelineModel created in Scala that includes an Interaction transformer with pyspark fails with the following error:

AttributeError: module 'pyspark.ml.feature' has no attribute 'Interaction'