getOlmSessionsForDevices method
Implementation
@override
Future<List<OlmSession>> getOlmSessionsForDevices(
List<String> identityKeys, String userId) async {
final sessions = await Future.wait(
identityKeys.map((identityKey) => getOlmSessions(identityKey, userId)));
return <OlmSession>[for (final sublist in sessions) ...sublist];
}