THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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In addition to addressing the above use-cases, this FLIP also proposes a few more changes to simplify the class hierarchy and improve API usability. The existing Flink ML library has the following usability issues:
5) The Model interface (which currently simply extends the Transformer interface without adding any extra logic) does not provide any added value (given that we already have Transformer). The added class hierarchy complexity is not justified.
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