processAccessToken method
Implementation
Future<Session> processAccessToken(Map<String, dynamic> response) async {
debug("processSession: Processing access token response: $response");
_session = Session.fromJson(response);
// Notify session listeners we have a new session.
_sessionController.add(_session);
debug("processSession: Access token parsed");
return storageProvider.saveSession(_session!).then((value) => _session!);
}