getAppToWebSingleSignOn
Single sign on the user web page and returns which returns a OWAppToWebSingleSignOn on success.
Future<OWAppToWebSingleSignOn> getAppToWebSingleSignOn(String url)
var oneginiAppToWebSingleSignOn = await Onegini.instance.userClient
        .getAppToWebSingleSignOn(
            "https:__login-mobile.test.onegini.com_personal_dashboard")
        .catchError((error) {
        print("Single sign on failed: " + error.message);
    });