OptionaldedupOptionalidThe event ID: a retried call with the same ID adds the event once and gets the same run.
OptionalmaxThe run starts as soon as the batch holds this many events (default 100, at most 10,000).
Optionalmax...or this long after the batch's first event (default 1s).
How long the key remembers event IDs after its last event (default 10m).