Query: Tombstone records support

Hi all,

I'm not an expert in java so it is difficult to me to know if the tombstone records are supported. If had seen that the null key values are managed properly, but I did not see any mention for the tombstone (key with value but null payload) case.

My plan is to use this connector to write down, as a log, all the different messages that are publish into some topics and there a few tombstone cases.

Thank you very much,