groupId property
Separate contacts can merged in one logical contact if they share the same groupId. When a contact must be split to selectively assign rights to healthcare parties, the split contacts all share the same groupId
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? groupId;