How to use the plugin : cordova-plugin-file-opener2 in ionic 2

[TPRADARI]

OHHHH Excuse me yes in my code i tried : import { FileOpener } from ‘@ionic-native/file-opener’;

And it do not worked.
And yes i throught the step on the web site : https://ionicframework.com/docs/native/file-opener/

thank you for your response !!