{description: The product that this is a pack for, package_name: hl7.fhir.r4b.examples, name: package-for, type: reference, package_version: 4.3.0-snapshot1, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/PackagedProductDefinition-package-for', version: 4.3.0-snapshot1}