/**
* Gets the disk usage of the object in bytes.
*
* @access public
* @return integer the disk usage in bytes
*/
function getDiskUsage()
{
require_once "./Modules/HTMLLearningModule/classes/class.ilObjFileBasedLMAccess.php";
return ilObjFileBasedLMAccess::_lookupDiskUsage($this->id);
}
