{description: The date(s) a qualification is valid for, package_name: hl7.fhir.r6.search, name: qualification-period, type: date, package_version: 6.0.0-ballot3, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/Practitioner-qualification-period', version: 6.0.0-ballot3}