/**
  * Sets whether or not to include the Authorization header in GitHub API requests, both parameters are required to enable basic auth
  * @param {string} $username Github Username
  * @param {string} $password Github Password
  */
 public function useBasicAuth($username = false, $password = false)
 {
     self::$useBasicAuth = $username !== false && $password !== false;
     self::$username = $username;
     self::$password = $password;
 }