oaStatus property
The Open Access (OA) status of this work. Possible values are: gold: Published in an OA journal that is indexed by the DOAJ. green: Toll-access on the publisher landing page, but there is a free copy in an OA repository. hybrid: Free under an open license in a toll-access journal. bronze: Free to read on the publisher landing page, but without any identifiable license. closed: All other articles.
Implementation
@JsonKey(name: 'oa_status')
String? oaStatus;