Plugin does not work in Ionic 3

[IsiHund]

I am trying to use this plugin in my ionic 3 application.
In Typescript this line navigator.VuforiaPlugin does not work.
I do not know how I have to change this line.

Is there a way to use this plugin in ionic 3?

[Missile71]

declare var navigator: any; <-------

@IonicPage()
@component({