/**
* Appends values to template variables.
*
* @param array|string $tpl_var the template variable name(s)
* @param mixed $value
* The value to append.
* @param bool $merge
*/
public function append($tpl_var, $value = NULL, $merge = FALSE)
{
self::$_template->append($tpl_var, $value, $merge);
}
