/**
* Set expiration date for a share
* @param string $itemType
* @param string $itemSource
* @param string $date expiration date
* @param int $shareTime timestamp from when the file was shared
* @return boolean
*/
public static function setExpirationDate($itemType, $itemSource, $date, $shareTime = null)
{
return \OC\Share\Share::setExpirationDate($itemType, $itemSource, $date, $shareTime);
}