public function findOrMakeListObject()
    {
        // Obtain List Object:
        
        $object = $this->owner->getListObject();
        
        // Create List Object (if required):
        
        if (!$object->isInDB()) {
            $object = $this->owner->createListObject();
        }
        
        // Answer List Object:
        
        return $object;
    }