/**
* Add item to current transaction
* @param null $id
* @param null $quantity
* @param null $value
* @return $this
*/
public function addItem($id = null, $quantity = null, $value = null)
{
$item = new Item();
$item->setId($id);
$item->setQuantity($quantity);
$item->setValue($value);
$this->_items->addItem($item);
return $this;
}
