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function BulkLoader(){
  this.users = [];
  this.companies = [];
  this.contacts = [];
};

BulkLoader.prototype.iterator = function * () {
  this.users = yield [{name: 'bob', email: 'bob@hotmail.com'}];
  this.contacts = yield [{name: 'brian', email: 'brian@hotmail.com'}];
  this.companies = yield [{name: 'company', email: 'company@hotmail.com'}];

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BulkLoader.prototype.load = function() {
  var self = this;

  return async(function * () {
    try {
      self.users = yield getJSON('/users');
      self.contacts = yield getJSON('/contacts');
      self.companies = yield getJSON('/companies');

      return self;

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export default function async(generatorFunc) {
  function continuer(verb, arg) {
    var result;
    try {
      result = generator[verb](arg);
    } catch (err) {
      return RSVP.Promise.reject(err);
    }
    if (result.done) {
      return result.value;

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self.users = yield getJSON('/users');

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  return async(function * () {

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  var generator = generatorFunc();

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var callback = continuer.bind(continuer, "next");
var errback = continuer.bind(continuer, "throw");

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result = generator[verb](arg);

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result = generator.next(arg);

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self.users = yield getJSON('/users');