How to use the compose-function.capitalize function in compose-function

//  Underscore.string
//  (c) 2010 Esa-Matti Suuronen 
//  Underscore.string is freely distributable under the terms of the MIT license.
//  Documentation: https://github.com/epeli/underscore.string
//  Some code is borrowed from MooTools and Alexandru Marasteanu.
//  Version '1.0.4'

'use strict';

var S = require('compose-function');

S.VERSION = '1.0.4';

S.isBlank          = require('./isBlank');
S.stripTags        = require('./stripTags');
S.capitalize       = require('./capitalize');
S.decapitalize     = require('./decapitalize');
S.chop             = require('./chop');
S.trim             = require('./trim');
S.clean            = require('./clean');
S.count            = require('./count');
S.chars            = require('./chars');
S.swapCase         = require('./swapCase');
S.escapeHTML       = require('./escapeHTML');
S.unescapeHTML     = require('./unescapeHTML');
S.splice           = require('./splice');
S.insert           = require('./insert');
S.replaceAll       = require('./replaceAll');
S.replaceAllIgnoreCase       = require('./replaceAllIgnoreCase');
S.include          = require('./include');
S.join             = require('./join');
S.lines            = require('./lines');