description: null package_name: ca.on.phsd.r4-alpha derivation: constraint name: AvailableTimeString type: Extension elements: url: pattern: {type: Uri, value: 'https://ontariohealth.ca/fhir/StructureDefinition/ca-on-phsd-ext-available-time-string'} index: 0 value: choices: [valueString] index: 2 valueString: {type: string, choiceOf: value, index: 3} package_version: 0.1.0 class: extension kind: complex-type url: https://ontariohealth.ca/fhir/StructureDefinition/ca-on-phsd-ext-available-time-string base: http://hl7.org/fhir/StructureDefinition/Extension version: null