/**
* returns a specific variable for the object in a proper format
*
* @param string $key key of the object's variable to be returned
* @param string $format format to use for the output
*
* @return mixed formatted value of the variable
*/
public function getVar($key, $format = 's')
{
$ret = null;
if (!isset($this->vars[$key])) {
return $ret;
}
$ret = Dtype::getVar($this, $key, $format);
return $ret;
}
