description: A reference to the key of an actor listed in Requirements.actor that is relevant to this requirement statement (as introduced in FHIR R6). package_name: hl7.fhir.uv.tools.r4 derivation: constraint name: RequirementsStatementActor type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/tools/StructureDefinition/requirements-statementactor'} index: 1 value: choices: [valueId] index: 3 valueId: {type: id, choiceOf: value, index: 4} package_version: 1.1.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/tools/StructureDefinition/requirements-statementactor base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.1.0 required: [value, valueId]