Decode JWT token

Hello, i am have own package with authorization. There i am use query to server for login and get response with token (JWT). I am want decode token, and install this package (jwt-simple).
I write
var jwt = require('jwt-simple');
in file of my package where i am get token. But i have error >
_ Error in OAuth Server: Meteor.require is not a function_.
What right way for decode JWT token?

Here you can see how to use npm package in meteor, not using the require function, just use the import way.

import moment from 'moment';

// this is equivalent to the standard node require:
const moment = require('moment');