From 24b627dd7c07c5ec021443b656b4a83432a4604f Mon Sep 17 00:00:00 2001
From: Hannes <31671206+xJuvi@users.noreply.github.com>
Date: Tue, 18 Aug 2026 08:41:37 +0200
Subject: [PATCH] Change sentWith to nullable and add signingSecret

---
 src/Client.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Client.php b/src/Client.php
index 9f7d5bc..38a52f1 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -21,7 +21,8 @@ class Client {
     protected array $headers = [
         'Accept: application/json',
     ];
-    protected string $sentWith;
+    protected ?string $sentWith;
+    protected ?string $signingSecret;
 
     /**
      * @throws InvalidArgumentException
@@ -38,6 +39,7 @@ public function __construct(
         
         // Always use the class constant, ignore the parameter
         $this->sentWith = self::SENT_WITH;
+        $this->signingSecret = $signingSecret;
         
         $this->headers[] = 'SentWith: ' . $this->sentWith;
         $this->setApiKey($this->apiKey);
@@ -220,4 +222,4 @@ public function post(string $path, array $payload = []): mixed {
     public function get(string $path, array $params = []): mixed {
         return $this->request($path, HttpMethod::GET, $params);
     }
-}
\ No newline at end of file
+}