An event type.
Optional isDuplicate: ((this, prior, next) => boolean)A function that checks whether the next incoming event is a duplicate of a previously reported one. Accepts a prior and next event tuples as parameters, and returns a truthy value if they are duplicates. By default, treats event tuples as duplicates if corresponding meaningful arguments are strictly equal.
Deduplicating processor of events incoming from @AfterEvent keeper.
Creates an event processor that similar events incoming from `AfterEvent keeper are not reported more than once, and does not share the outgoing events supply.
The outgoing events supply is cut off once the incoming events supply do.
An event type.
An event cue type.
A function that checks whether the next incoming event is similar to previously reported one. Accepts the prior and next event cues as parameters, and returns a truthy value if those are cues of similar events.
A function that accepts an event tuple and returns its cue.
Deduplicating processor of events incoming from @AfterEvent keeper.
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Creates an event processor that ensures the same event incoming from `AfterEvent keeper is not reported twice, and does not share the outgoing events supply.
The outgoing events supply is cut off once the incoming events supply do.