The number of entities that match the criteria for the specified events.
The unique identifier for the event. The event ARN has the arn:aws:health:<i>event-region</i>::event/<i>SERVICE</i>/<i>EVENT_TYPE_CODE</i>/<i>EVENT_TYPE_PLUS_ID</i> format.
arn:aws:health:<i>event-region</i>::event/<i>SERVICE</i>/<i>EVENT_TYPE_CODE</i>/<i>EVENT_TYPE_PLUS_ID</i>
The number of affected entities aggregated by the entity status codes.