shape property
Shape is the model space this verdict was reached in, as <family>:<digest>: the KIND of model, and that family's own digest over your organisation's feature inventory in order and the detector's geometry parameters. It is what pins an adverse decision to a model — a score is only meaningful against the space that produced it, and without this the only answer to "which model decided this" was "the one that was running", which is not an answer. The family leads it because everything after it is one family's arithmetic. Two spaces are the same space only if they are the same family, so comparing this with the shape on your model state or on a published value is a comparison that holds ACROSS families and not only inside one. It names the SPACE, not the learned state, and that is deliberate. The masses at the instant of a score are in-process counters somewhere between two published values, so citing a published address here would claim that value produced this score — true only for the score taken the instant after a publication. This, the policy version and the event's own time are what IS true, and the published history's clock (GET /v1/risk/state) brackets the decision between two named values from there.
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? shape;