{description: Base StructureDefinition for xhtml Type, package_name: hl7.fhir.core, derivation: specialization, name: xhtml, type: xhtml, package_version: 3.2.0, class: primitive-type, kind: primitive-type, url: 'http://hl7.org/fhir/StructureDefinition/xhtml', base: 'http://hl7.org/fhir/StructureDefinition/Element', version: null}