create static method
Implementation
static Future<DeviceSelfRevokeEventBodyModel> create() async {
final lastEvent = await Database.instance.events
.latestDeviceEvent(Signing.instance.publicKey)
.get();
return DeviceSelfRevokeEventBodyModel(
lastValidEventHash: lastEvent?.hash,
lastValidSequence: lastEvent?.sequence,
timestamp: DateTime.now(),
);
}