actor property
Actor is WHO this session belongs to, as "org/sub" — the same identity a run is billed under. A register that names none takes the calling principal. It is what scopes a login revoke, so a session with the wrong actor is a session the right person cannot stop.
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? actor;