Ionic 3 Local Notifications Permissions

Question

Could you tell me how to ask Permissions upfront? I'm using cordova-plugin-local-notifications plugin.

I have tried below code.But no luck?

 changePaymentReminders() {
    if (this.data.isEnabledPaymentReminders) this.localNotifications.registerPermission();
  }

I need to show this dialog. It works with the notification. But I need to ask it from the user in advance.