public function __toString()
{
$display = ['amount', 'reason', 'status', 'replyByDate', 'receivedDate', 'currencyIsoCode'];
$displayAttributes = [];
foreach ($display as $attrib) {
$displayAttributes[$attrib] = $this->{$attrib};
}
return __CLASS__ . '[' . Util::attributesToString($displayAttributes) . ']';
}