Date struct Date : ReferenceConvertible, Comparable, Equatable fhir_asDate() Create a FHIRDate instance from the receiver. Declaration Swift func fhir_asDate() -> FHIRDate fhir_asTime() Create a Time instance from the receiver. Declaration Swift func fhir_asTime() -> FHIRTime fhir_asDateTime() Create a DateTime instance from the receiver. Declaration Swift func fhir_asDateTime() -> DateTime fhir_asInstant() Create an Instance instance from the receiver. Declaration Swift func fhir_asInstant() -> Instant