description: Identifies the kind(s) of attachmemt allowed to be sent for an element. package_name: rs/hl7.fhir.r2.core name: Type of attachment type: null elements: extension: {name: extension, index: 0} url: type: uri pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/mimeType'} index: 1 value: choices: [valueCode] index: 3 valueCode: {type: code, choiceOf: value, index: 4} package_version: 1.0.2 extensions: {} class: datatype kind: datatype url: http://hl7.org/fhir/StructureDefinition/mimeType version: null required: [value, valueCode]