private function _getCollapsibleArgumentForSections(array $aSectionset = array())
{
$_oArgumentFormater = new AdminPageFramework_Form_Model___Format_CollapsibleSection($aSectionset['collapsible'], $aSectionset['title'], $aSectionset);
$_aCollapsible = $this->getAsArray($_oArgumentFormater->get());
return isset($_aCollapsible['container']) && 'sections' === $_aCollapsible['container'] ? $_aCollapsible : array();
}