text: 
  const Employee = require('./Employee');
  
  class Engineer extends Employee{
    constructor(name = '', id = '', email = '', github = ''){
      super(name, id, email);
      this.github = github;
    }
  
    getGithub() {
      return 'https://github.com/' + this.github;
    }
  
    getRole = function () {
      return 'Engineer';
    }
  }
  
  module.exports = Engineer;