GraphQL-256: [BugFix] Configurable products > Variants > Attributes are empty

-- fix static tests

Author: naydav

app/code/Magento/ConfigurableProductGraphQl/Model/Resolver/ConfigurableVariant.php

@@ -71,9 +71,7 @@ public function __construct(
     }
 
     /**
-     * Fetch and format configurable variants.
-     *
-     * {@inheritDoc}
+     * @inheritdoc
      */
     public function resolve(Field $field, $context, ResolveInfo $info, array $value = null, array $args = null)
     {

app/code/Magento/ConfigurableProductGraphQl/Model/Resolver/Variant/Attributes.php

@@ -7,6 +7,8 @@
 
 namespace Magento\ConfigurableProductGraphQl\Model\Resolver\Variant;
 
+use Magento\Framework\GraphQl\Query\Resolver\ContextInterface;
+use Magento\Framework\GraphQl\Query\Resolver\Value;
 use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
 use Magento\Framework\GraphQl\Config\Element\Field;
 use Magento\Framework\GraphQl\Query\ResolverInterface;
@@ -20,6 +22,14 @@ class Attributes implements ResolverInterface
      * Format product's option data to conform to GraphQL schema
      *
      * {@inheritdoc}
+     *
+     * @param Field $field
+     * @param ContextInterface $context
+     * @param ResolveInfo $info
+     * @param array|null $value
+     * @param array|null $args
+     * @throws \Exception
+     * @return mixed|Value
      */
     public function resolve(
         Field $field,