/**
* Return block instance with specific attribute fields
*
* @param Enterprise_ImportExport_Model_Scheduled_Operation $operation
* @return Enterprise_ImportExport_Block_Adminhtml_Export_Filter
*/
protected function _getFilterBlock($operation)
{
$export = $operation->getInstance();
$block = $this->getLayout()->createBlock('enterprise_importexport/adminhtml_export_filter')->setOperation($export);
$export->filterAttributeCollection($block->prepareCollection($export->getEntityAttributeCollection()));
return $block;
}
