protected function resetIdFilter(){
        foreach($this->options as $op=>$junk){
            if(preg_match("#ShipmentIdList#",$op)){
                unset($this->options[$op]);
            }
        }
    }
protected function resetIdFilter(){
        foreach($this->options as $op=>$junk){
            if(preg_match("#ShipmentIdList#",$op)){
                unset($this->options[$op]);
            }
        }
    }
protected function resetIdFilter ( ) { foreach ( $ this -> options as $ op => $ junk ) { if ( preg_match ( "#ShipmentIdList#" , $ op ) ) { unset ( $ this -> options [ $ op ] ) ; } } }
Resets the shipment ID options.

Since shipment ID is a required parameter, these options should not be removed
without replacing them, so this method is not public.
Resets the shipment ID options .