/**
  * @return array
  */
 protected static function getShipmentAvailableFields()
 {
     $clearFields = array('STATUS_ID');
     $result = array();
     $fields = Sale\Shipment::getAvailableFields();
     if (!empty($clearFields)) {
         foreach ($fields as $field) {
             if (!in_array($field, $clearFields)) {
                 $result[] = $field;
             }
         }
     }
     return $result;
 }