/**
* Sets a value of an element in the list.
*
* @param string $key
* @param mixed|null $value
*
* @return Shopware_Components_Cron_CronJob
*/
public function set($key,
$value) { if ($key === 'data'
) { $this->
setReturn($value);
} else { $this->_elements
[$key] =
$value;
} return $this;
} /**
* Returns a value of an element in the list.
*
* @param string $key
*
* @return mixed|null
*/