use php array_key_exists method.

Author: suraj-webkul

packages/Webkul/Attribute/src/Repositories/AttributeValueRepository.php

@@ -4,7 +4,6 @@
 
 use Illuminate\Container\Container;
 use Illuminate\Support\Facades\Storage;
-use Illuminate\Support\Arr;
 use Webkul\Core\Eloquent\Repository;
 
 class AttributeValueRepository extends Repository
@@ -65,7 +64,7 @@ public function save(array $data, $entityId)
                 $data[$attribute->code] = isset($data[$attribute->code]) && $data[$attribute->code] ? 1 : 0;
             }
 
-            if (! Arr::exists($data, $attribute->code)) {
+            if (! array_key_exists($attribute->code, $data)) {
                 continue;
             }