As reported on this question on SO (https://stackoverflow.com/questions/54803124/cancel-punctuator-on-kafka-streams-after-is-triggered) if one registers a lot of punctuation one needs to track them manually if they should be cancel at some point, what can be tedious.
It might be a good addition, to allow a `Punctuator` to cancel itself. Something like:
It's just a sketch of an idea. This ticket implies a public API change and requires to write a KIP: https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Improvement+Proposals