description: 'DSTU2: `Conformance.rest.operation.definition` additional types (Reference(http://hl7.org/fhir/StructureDefinition/OperationDefinition)) additional types from child elements (display, reference)' package_name: hl7.fhir.uv.xver-r2.r5 derivation: constraint name: ExtensionConformance_Rest_Operation_Definition type: Extension elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/1.0/StructureDefinition/extension-Conformance.rest.operation.definition'} index: 0 value: short: The defined operation/query choices: [valueReference] base: {max: '1', min: 0, path: 'Extension.value[x]'} index: 2 valueReference: short: The defined operation/query refers: ['http://hl7.org/fhir/1.0/StructureDefinition/profile-OperationDefinition|0.1.0', 'http://hl7.org/fhir/StructureDefinition/OperationDefinition|5.0.0'] type: Reference base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value index: 3 package_version: 0.1.0 class: extension kind: complex-type url: http://hl7.org/fhir/1.0/StructureDefinition/extension-Conformance.rest.operation.definition base: http://hl7.org/fhir/StructureDefinition/Extension|5.0.0 version: 0.1.0 required: [url, valueReference, value]