private function _getFormattedTab(array $aTab, array $aTabs)
{
$aTab = is_callable($this->aCallbacks['format']) ? call_user_func_array($this->aCallbacks['format'], array($aTab, $this->aTab, $aTabs, $this->aCallbacks['arguments'])) : $aTab;
if (isset($aTab['attributes'], $this->aTab['attributes'])) {
$aTab['attributes'] = $aTab['attributes'] + $this->aTab['attributes'];
}
return $aTab + $this->aTab;
}