Optional[customOptional[unknownEvent code (unique within the API service), in UpperCamelCase, e.g. "DiskAttached"
OptionalerrorDescribes a GRPC error status associated with an ERROR- or WARN-level event, if known. The error must have a standard GRPC code (which must not be OK (0)) and a human-readable message. A standard common.v1.ServiceError should also be included in details
Severity level for the event
A human-readable message describing what has happened (and suggested actions for the user, if this is a WARN- or ERROR-level event)
OptionaloccurredTime at which the event has occurred
Represents an API Resource-related event which is potentially important to the end-user. What exactly constitutes an event to be reported is service-dependent