How to open the secure settings of the android phone with my ionic 2 app?

I'm using Ionic 2 and the secureStorage plugin. The problem is that with Android, the device has to be secured with a code to use secure storage.

In the documentation it has:

var ss;
var _init = function () {
    ss = new cordova.plugins.SecureStorage(
        function () {
            console.log('OK');
        },
        function () {
            navigator.notification.alert(
                'Please enable the screen lock on your device. This app cannot operate securely without it.',
                function () {
                    ss.secureDevice(
                        function () {
                            _init();
                        },
                        function () {
                            _init();
                        }
                    );
                },
                'Screen lock is disabled'
            );
        },
        'my_app');
};
_init();

But I'm not using ionic 1 but ionic 2. How to call the secureDevice method?

I do anything like:

this.secureStorage.create('myStorage')
                .then((storage: SecureStorageObject) => {
                    storage.set('var', 'toto')
                        .then(
                        () => console.log('ok),
                        (e) => console.log('error');
                        );
                }).catch((err) => {
                    console.error('The device is not secured');
                })

I can detect in the catch that the device is not secured. But how can I add next to my console.err a call to the secureDevice method?

The documentation: https://ionicframework.com/docs/native/secure-storage/