/**
  * Sets the service HTTPS flag.
  *
  * @param boolean $https TRUE if the service uses HTTPS else FALSE.
  *
  * @throws \Ivory\GoogleMap\Exception\ServiceException If the https flag is not valid.
  */
 public function setHttps($https)
 {
     if (!is_bool($https)) {
         throw ServiceException::invalidServiceHttps();
     }
     $this->https = $https;
 }