How to use moment.js library in angular 2 typescript app?

I tried to use it with typescript bindings:

npm install moment --save
typings install moment --ambient -- save

test.ts:

import {moment} from 'moment/moment';

And without:

npm install moment --save

test.ts:

var moment = require('moment/moment');

But when I call moment.format(), I get an error.
Should be simple, can anybody provide a command line/import combination that would work?