old_contents: var apimocker = require("apimocker");
  
  module.exports = {
  	start: function(){
  		console.log('--------------------');
  	}
  }
new_contents: var apimocker = require("apimocker");
  
  module.exports = {
    start: function (options) {
      if (options == null) {
        options = {};
      }
  
      apimocker.createServer(options).setConfigFile(options.config).start();
    }
  }
subject: add start function to index.js