{description: Indication of the reason the entity signed the object(s), package_name: hl7.fhir.r5.examples, name: signature-type, type: token, package_version: 5.0.0-snapshot1, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/Provenance-signature-type', version: 5.0.0-snapshot1}