url property
url
An absolute URI that is used to identify this measure when it is
referenced in a specification, model, design or an instance; also
called its canonical identifier. This SHOULD be globally unique and
SHOULD be a literal address at which an authoritative instance of this
measure is (or will be) published. This URL can be the target of a
canonical reference. It SHALL remain the same when the measure is
stored on different servers.
Implementation
FhirUri? get url => throw _privateConstructorUsedError;