Queries latest Event ID for this stream.
|FSEventsRef||The reference number for this FSEvents object.||$fstream|
Returns ID or error.
DescriptionQueries latest Event ID for this stream.
Fetches the sinceWhen property of the stream. Upon receiving an event (and just before invoking the client's callback) this attribute is updated to the highest-numbered event ID mentioned in the event.
Query last event ID:
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