targets property
One or more binding targets — web origins, mobile app identifiers, and/or DIDs — that this credential applies to. A request from any matching target uses this entry. A typical entry for a service that exists as both a website and mobile apps will list a web origin, an iOS bundle id, and an Android package id; passkeys for that service typically list only the origin (because iOS Associated Domains and Android Asset Links bind apps to the domain at the OS level).
Implementation
final List<SiteTarget> targets;