public function get_total_refunded_for_item($item_id, $item_type = 'line_item')
{
$total = 0;
foreach ($this->get_refunds() as $refund) {
foreach ($refund->get_items($item_type) as $refunded_item) {
if (absint($refunded_item->get_meta('_refunded_item_id')) === $item_id) {
$total += $refunded_item->get_total();
}
}
}
return $total * -1;
}