description: If true, marks that this element is a choice group that doesn't literally appear in the XML; it only exists to group a set of repeating of elements package_name: rs/hl7.fhir.uv.tools derivation: constraint name: XMLChoiceGroup type: Extension elements: extension: {index: 0} value: choices: [valueBoolean] index: 2 valueBoolean: {type: boolean, choiceOf: value, index: 3} package_version: 0.1.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/tools/StructureDefinition/xml-choice-group base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.1.0 required: [value, valueBoolean]