First step to async generation [WIP]

src/Bundle/ChillMainBundle/Export/FormatterInterface.php

@@ -13,6 +13,9 @@ namespace Chill\MainBundle\Export;
 
 use Symfony\Component\Form\FormBuilderInterface;
 
+/**
+ * @method generate($result, $formatterData, string $exportAlias, array $exportData, array $filtersData, array $aggregatorsData): FormattedExportGeneration
+ */
 interface FormatterInterface
 {
     public const TYPE_LIST = 'list';