From 09378ab742d85dc9e03c454e1ddb146f1aa1831a Mon Sep 17 00:00:00 2001
From: Patrick <privat@skyraptor.eu>
Date: Mon, 17 Jan 2022 19:24:12 +0100
Subject: [PATCH] Update CartItem.php

---
 src/CartItem.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/CartItem.php b/src/CartItem.php
index d189a39..961523e 100644
--- a/src/CartItem.php
+++ b/src/CartItem.php
@@ -98,9 +98,9 @@ class CartItem implements Arrayable, Jsonable
     /**
      * The cart instance of the cart item.
      *
-     * @var string
+     * @var null|string
      */
-    public $instance;
+    public $instance = null;
 
     /**
      * CartItem constructor.
@@ -382,7 +382,7 @@ class CartItem implements Arrayable, Jsonable
     /**
      * Set cart instance.
      *
-     * @param string $instance
+     * @param null|string $instance
      *
      * @return \Gloudemans\Shoppingcart\CartItem
      */