Ionic-Native Push

Ionic Framework ionic-v3
1

Hi, I am following the example in github

var pushNotif = Push.init({ android: { senderID: "1234567" } }); pushNotif.on('registration', function(data) { alert(data.registrationId); }); }

But then it gives me the following error
browser_adapter.js:77 TypeError: pushNotif.on is not a function

I have tried using sample project, and still gives me the error. Anybody able to get arround the issue?