{description: The period during which the practitioner is authorized to perform in these role(s), package_name: hl7.fhir.r4b.examples, name: date, type: date, package_version: 4.3.0-snapshot1, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/PractitionerRole-date', version: 4.3.0-snapshot1}