From 6de257e066f7193b077564a56e3eb9f57faf505b Mon Sep 17 00:00:00 2001
From: Faissal Wahabali <fwahabali@gmail.com>
Date: Tue, 4 Jun 2024 14:31:20 +0100
Subject: [PATCH] [10.x] Turn `Enumerable unless()`  $callback parameter
 optional (#51701)

* turn Enumerable unless()  parameter optional

* nullable parameters declaration
---
 src/Illuminate/Collections/Enumerable.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Illuminate/Collections/Enumerable.php b/src/Illuminate/Collections/Enumerable.php
index 918f64758e66..c9fb24fa1fac 100644
--- a/src/Illuminate/Collections/Enumerable.php
+++ b/src/Illuminate/Collections/Enumerable.php
@@ -338,11 +338,11 @@ public function whenNotEmpty(callable $callback, callable $default = null);
      * @template TUnlessReturnType
      *
      * @param  bool  $value
-     * @param  (callable($this): TUnlessReturnType)  $callback
+     * @param  (callable($this): TUnlessReturnType)|null  $callback
      * @param  (callable($this): TUnlessReturnType)|null  $default
      * @return $this|TUnlessReturnType
      */
-    public function unless($value, callable $callback, callable $default = null);
+    public function unless($value, ?callable $callback = null, ?callable $default = null);
 
     /**
      * Apply the callback unless the collection is empty.