-mdoc: Invalid start element. Within 'Docs' element, got 'extra' element, while expected 'summary, param, exception, returns, remarks, example, value, permission, PermissionSet, altmember, altcompliant, since, threadsafe, typeparam, filterpriority, related' element.
+mdoc: The element 'Docs' has invalid child element 'extra'. List of possible elements expected: 'summary, param, exception, returns, remarks, example, value, permission, PermissionSet, altmember, altcompliant, since, threadsafe, typeparam, filterpriority, related, forInternalUseOnly'.
Total validation errors: 1