/**
  * Set Quotation Line description
  * @param  mixed $QuotationLineHandle
  * @param  string $description
  * @return boolean
  */
 public function description($QuotationLineHandle, $description)
 {
     $this->client->QuotationLine_SetDescription(array('quotationLineHandle' => $QuotationLineHandle, 'value' => $description));
     return true;
 }