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fhir package
documentation
dstu2/resource_types/identification_types/entities/entities.dart
SubstanceInstance
expiry property
expiry property
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expiry
property
FhirDateTime
?
expiry
inherited
Implementation
FhirDateTime? get expiry => throw _privateConstructorUsedError;
fhir package
documentation
dstu2/resource_types/identification_types/entities/entities
SubstanceInstance
expiry property
SubstanceInstance class