Missing documentation for installation

How do you install this with Express 4? This is my setup:

var express = require('express')
    , app = express()
    , exphbs = require('express-handlebars');

var hbs = exphbs.create({
    extname: '.hbs',
    defaultLayout: 'default',
    layoutsDir: './lib/templates/layouts',
    partialsDir: './lib/templates/partials'
    helpers: require('handlebars-helpers') // Not registering correctly
});

In a template: {{lowercase “MAKE THIS ALL LOWERCASE”}}

Yields: Error: Missing helper: “lowercase”

[maban]

This has me stumped too. There’s a step missing in the documentation after installing the package. 😦

[yairEO]

none-the-less there is a missing step in the docs, for those who use handles in the client (and not in the server).

Nothing about registering is mentioned.