How to connect npm_module in components in angular2?

Question

Angular

var mailgun = require('../node_modules/mailgun-js/lib/mailgun.js')

I'm trying to connect this module in one of my components, the page opens in the browser, but the fact is that in the mailgun.js file, there are such lines

var tsscmp = require('tsscmp');
var crypto = require('crypto');

var Attachment = require('./attachment');
var Request = require('./request');
var builder = require('./build');
var resources = require('./schema').definitions;

and in the browser there is an error for each of the required() , tell me please, maybe I'm connecting the module to the component incorrectly? or some other error