How to use the i.titleize function in i

var config = require('../../config');
var csv = require('csv');
var getUri = require('get-uri');
var highlight = require('highlight-redux');
var jsonEditor = require('./jsoneditform');

// This import is just for extending json editor with custom editor
var resourceEditor = require('./resource-editor');

var jtsInfer = require('json-table-schema').infer;
var registry = require('./registry');
var request = require('superagent-bluebird-promise');
var _ = require('underscore');
var $ = require('jquery');
var Promise = require('bluebird');
var titleize = require('i')().titleize;


// Upload data file and populate .resource array with item
DataUploadView = backbone.BaseView.extend({
  addRow: function(name) {
    var descriptorEdit = window.APP.layout.descriptorEdit;


    descriptorEdit.layout.form.getEditor('root.resources').add({name: name, path: name});
    descriptorEdit.populateTitlesFromNames();
    return this;  
  },

  hideLoading: function() { window.APP.layout.splashScreen.activate(false); return this; },

  events: {

/**
 * Created by Ihor Borysyuk on 28.10.15.
 */
var _ = require('underscore');
var Promise = require('bluebird');
var csvParser = require('papaparse');
var jtsInfer = require('json-table-schema').infer;
var titleize = require('i')().titleize;


function createCSVResourse() {
    function _extendResult(result) {
        var mixMethods = {
            headers: function () {
                return (this.data.length) ? this.data[0] : [];
            }
        };
        return _.extend(result, mixMethods);
    };

    function _parse(csvFile, options) {
        return new Promise(
            function (resolve, reject) {
                var config = {