lang string enum, required- Language these labels resolved to. Echoes the `lang` query parameter, or `en` when it is omitted. One of
en, tr, de, es, hi, pt, fr, ru, zh-Hans, zh-Hant. fields object, required- Label per request field or parameter name. Keys are the wire names used in request bodies, query parameters and path parameters, such as `birthDate`, `timezone` or `houseSystem`.
enums object, required- Label per selectable option, keyed `{fieldName}.{value}` so the same value can read differently under different fields. For example `nodeType.mean`, `houseSystem.whole-sign` and `id.rat`. An id shared by collections with different display names is omitted. Split on the first dot: the field name is before it, and everything after it is the value you send back unchanged.