{description: The event used as a base point (reference point) in time., package_name: hl7.fhir.uv.xver-r5.r4, name: EvidenceVariableEvent, type: null, package_version: 0.0.1-snapshot-2, class: unknown, kind: null, url: 'http://hl7.org/fhir/evidence-variable-event', version: 5.0.0}