public static function merge(&$context, $tmp) {
        $context['error'] = $tmp['error'];
        $context['helpers'] = $tmp['helpers'];
        $context['partials'] = $tmp['partials'];
        $context['partialCode'] = $tmp['partialCode'];
        $context['partialStack'] = $tmp['partialStack'];
        $context['usedCount'] = $tmp['usedCount'];
        $context['usedFeature'] = $tmp['usedFeature'];
        $context['usedPartial'] = $tmp['usedPartial'];
    }