/**
* Get or set sent status for a Quotation by Quotation number
*
* @param integer $no
* @param boolean $set
* @return boolean
*/
public function sent($no, $set = null)
{
$handle = $this->getHandle($no);
if (!is_bool($set)) {
return $this->client->Quotation_GetIsSent(['quotationHandle' => $handle])->Quotation_GetIsSentResult;
} elseif (!$set) {
$this->client->Quotation_CancelSentStatus(['quotationHandle' => $handle]);
return true;
}
$this->client->Quotation_RegisterAsSent(['quotationHandle' => $handle]);
return true;
}