RobRichards\XMLSecLibs\XMLSecurityKey::serializeKey PHP Method

    public function serializeKey($parent)
    {
    }

 /**
  * @param XMLSecurityKey $objKey
  * @param null|DOMNode $parent
  */
 public function appendKey($objKey, $parent = null)
 {
     $objKey->serializeKey($parent);
 }