structure
A lambda function which returns a StructureMap. Depending on your app this could be hard-coded or use the String parameter to fetch the appropriate structure map.
Parameters
String
The canonical URL for the Structure Map referenced in the Target structure map extension of the questionnaire.
IWorker
May be used with other HAPI FHIR classes, like using StructureMapUtilities.parse to parse content in the FHIR Mapping Language.