function get_beautify(js_beautify, css_beautify, html_beautify) {
    // the default is js
    var beautify = function(src, config) {
      return js_beautify.js_beautify(src, config);
    };

    // short aliases
    beautify.js = js_beautify.js_beautify;
    beautify.css = css_beautify.css_beautify;
    beautify.html = html_beautify.html_beautify;

    // legacy aliases
    beautify.js_beautify = js_beautify.js_beautify;
    beautify.css_beautify = css_beautify.css_beautify;
    beautify.html_beautify = html_beautify.html_beautify;

    return beautify;
  }
The following batches are equivalent:

  var beautify_js = require('js-beautify');
  var beautify_js = require('js-beautify').js;
  var beautify_js = require('js-beautify').js_beautify;

  var beautify_css = require('js-beautify').css;
  var beautify_css = require('js-beautify').css_beautify;

  var beautify_html = require('js-beautify').html;
  var beautify_html = require('js-beautify').html_beautify;

  All methods returned accept two arguments, the source string and an options object.