old_contents: /*!
   * apiai
   * Copyright(c) 2015 http://api.ai/
   * Apache 2.0 Licensed
   */
  
  'use strict';
  
  // var apiai = require("../module/apiai");
  var apiai = require("apiai");
  
  var app = apiai("0eca2d2d94a8440885bd7cf4c2a92e93");
  
  var options = {
      sessionId: '<UNIQE SESSION ID>',
      language: 'zh-CN'
  };
  
  var request = app.textRequest('什么叫发票', options);
  
  request.on('response', function(response) {
      console.log(response);
  });
  
  request.on('error', function(error) {
      console.log(error);
  });
  
  request.end();
  
new_contents: /*!
   * apiai
   * Copyright(c) 2015 http://api.ai/
   * Apache 2.0 Licensed
   */
  
  'use strict';
  
  // var apiai = require("../module/apiai");
  var apiai = require("apiai");
  
  var app = apiai("YOUR_ACCESS_TOKEN");
  
  var options = {
      sessionId: '<UNIQE SESSION ID>',
      language: 'zh-CN'
  };
  
  var request = app.textRequest('什么叫发票', options);
  
  request.on('response', function(response) {
      console.log(response);
  });
  
  request.on('error', function(error) {
      console.log(error);
  });
  
  request.end();
  
subject: remove api key from example