public function import(\SimpleXMLElement $sx)
 {
     if (isset($sx->blocktypes)) {
         foreach ($sx->blocktypes->blocktype as $bt) {
             if (!is_object(BlockType::getByHandle((string) $bt['handle']))) {
                 $pkg = static::getPackageObject($bt['package']);
                 if (is_object($pkg)) {
                     BlockType::installBlockTypeFromPackage((string) $bt['handle'], $pkg);
                 } else {
                     BlockType::installBlockType((string) $bt['handle']);
                 }
             }
         }
     }
 }
 public function execute(Batch $batch)
 {
     $types = $batch->getObjectCollection('block_type');
     if (!$types) {
         return;
     }
     foreach ($types->getTypes() as $type) {
         if (!$type->getPublisherValidator()->skipItem()) {
             $pkg = null;
             if ($type->getPackage()) {
                 $pkg = \Package::getByHandle($type->getPackage());
             }
             if (is_object($pkg)) {
                 BlockType::installBlockTypeFromPackage($type->getHandle(), $pkg);
             } else {
                 BlockType::installBlockType($type->getHandle());
             }
         }
     }
 }