registeredJwt static method
A JWT carrying the exact <platform>_<service> = "true" registration
claim for key, plus any extra claims.
Implementation
static String registeredJwt(
ResourceKey key, {
Map<String, Object?> extra = const <String, Object?>{},
}) => jwt(<String, Object?>{
Claims.registrationKey(platform: key.platform, service: key.service):
'true',
...extra,
});