old_contents: 
  /* Helper */
  
  var app,
      util = require('util');
  
  function Helper() {
    app = corejs.app;
  }
  
  /**
    Returns the markup for an HTML <link> element
    
    @param {object} o Object containing:
      type: Type for the link element. Defaults to 'text/css'
      href: URL for the linked resource
    @public
   */
  
  Helper.prototype.stylesheet = function(o) {
    var rel = o.rel || 'stylesheet',
        type = o.type || 'text/css',
        href = o.href || '';
    return util.format('<link rel="%s" type="%s" href="%s" />', rel, type, href) ;
  }
  
  /**
    Returns the markup for an HTML <script> element
    
    @param {object} o Object containing:
      src: Path or URL to the script resource
    @public
   */
  
  Helper.prototype.script = function(o) {
    var src = o.src || '';
    return util.format('<script type="text/javascript" src="%s"></script>', src); 
  }
  
  /**
    Returns the markup for an HTML <a> element
    
    @param {object} o Object containing:
      text: Text for the link
      href: URL for the link
    @public
   */
  
  Helper.prototype.link = function(o, d) {
    var text = o.text || '',
        href = o.href || '#';
    return text.link(href);
  }
  
  module.exports = Helper;
  
new_contents: 
  /* Helper */
  
  var app,
      util = require('util');
  
  function Helper() {
    app = corejs.app;
  }
  
  /**
    Returns the markup for an HTML <link> element
    
    @param {object} o Object containing:
      type: Type for the link element. Defaults to 'text/css'
      href: URL for the linked resource
    @public
   */
  
  Helper.prototype.stylesheet = function(o) {
    var rel = o.rel || 'stylesheet',
        type = o.type || 'text/css',
        href = o.href || '';
    return util.format('<link rel="%s" type="%s" href="%s" />', rel, type, href) ;
  }
  
  /**
    Returns the markup for an HTML <script> element
    
    @param {object} o Object containing:
      src: Path or URL to the script resource
    @public
   */
  
  Helper.prototype.script = function(o) {
    var src = o.src || '';
    return util.format('<script type="text/javascript" src="%s"></script>', src); 
  }
  
  /**
    Returns the markup for an HTML <a> element
    
    @param {object} o Object containing:
      text: Text for the link
      href: URL for the link
    @public
   */
  
  Helper.prototype.link = function(o) {
    var text = o.text || '',
        href = o.href || '#';
    return text.link(href);
  }
  
  module.exports = Helper;
  
subject: Remove extra arg