terms property
Terms is the CITATION that basis points at — the licence identifier, the registry, or the operator publication. A source with no stated terms is not in the catalog.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? terms;