{description: This operation is used to search for and return notifications that have been previously triggered by a topic-based Subscription in R4., package_name: hl7.fhir.uv.subscriptions-backport, name: R5SubscriptionEvents, type: 'false', package_version: 1.1.0, class: operation, kind: operation, url: 'http://hl7.org/fhir/uv/subscriptions-backport/OperationDefinition/backport-subscription-events', version: 1.1.0}