feat:res

@@ -6,7 +6,7 @@ use Illuminate\Contracts\Support\Arrayable;
 use Illuminate\Support\Arr;
 use Lackoxygen\TiktokShop\Util\Json;
 
-class ResultSet implements Arrayable
+class ResultSet implements Arrayable, \Countable
 {
     /**
      * @var array|mixed
@@ -78,6 +78,14 @@ class ResultSet implements Arrayable
     }
 
     /**
+     * @return int
+     */
+    public function count(): int
+    {
+        return count($this->items);
+    }
+
+    /**
      * @param $name
      * @return $this|array|\ArrayAccess|mixed
      */