old_contents: const reponses = require('../data/responses');
  
  module.exports = {
    getRandomResponse: function(command) {
      let list = reponses[command];
      return list[Math.floor(Math.random() * list.length)];
    }
  };
  
new_contents: const responses = require('../data/responses');
  
  module.exports = {
    getRandomResponse: function(command) {
      let list = responses[command];
      return list[Math.floor(Math.random() * list.length)];
    }
  };
  
subject: fix typo