{description: SearchParameter for Protective Factor Extension with Reference data type, package_name: hl7.fhir.uv.extensions.r4b, name: ProtectiveFactorRefSearchParameter, type: reference, package_version: 5.3.0-ballot-tc, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/workflow-protectiveFactorRef', version: 5.3.0-ballot-tc}