How do I import and use a NPM package to a Vue.js application?

I’ve tried to import this package to my Vue.js app, but nothing worked.

I want to use this package to translate a text content from <input> html tag.

This is the <input> in HelloWorld.vue file:

 <input class="input" placeholder="Type your text here" />

I’ve imported in main.js file with:

import "@vitalets/google-translate-api";

And looks like it worked, but how can I use the package with my <input> text content?