description: In a transaction, every single interaction can have multiple HTTP response headers returned as a result of the interaction. package_name: hl7.fhir.r5.core derivation: constraint name: BundleHttpResponseHeader type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/http-response-header'} index: 1 value: choices: [valueString] index: 3 valueString: {type: string, choiceOf: value, index: 4} package_version: 5.0.0-snapshot3 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/http-response-header base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.0.0-snapshot3 required: [valueString, value]