From d61a0520fd992f3bcf7a01a3921cc556997fa258 Mon Sep 17 00:00:00 2001
From: Elnur Hajiyev <elnurvl@gmail.com>
Date: Mon, 6 Sep 2021 14:45:36 +0400
Subject: [PATCH] Make `$CustomerReference` nullable in `AuthenticateSPRequest`

---
 src/Gateway/Request/AuthenticateSPRequest.php | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/Gateway/Request/AuthenticateSPRequest.php b/src/Gateway/Request/AuthenticateSPRequest.php
index ddea84b..be66ff3 100644
--- a/src/Gateway/Request/AuthenticateSPRequest.php
+++ b/src/Gateway/Request/AuthenticateSPRequest.php
@@ -14,9 +14,9 @@
 class AuthenticateSPRequest
 {
     /**
-     * @var string
+     * @var ?string
      */
-    private string $CustomerReference;
+    private ?string $CustomerReference;
 
     /**
      * @var stdClass
@@ -111,19 +111,19 @@ private function addContactDetails(Identity $identity)
     }
 
     /**
-     * @return string
+     * @return ?string
      */
-    public function getCustomerReference(): string
+    public function getCustomerReference(): ?string
     {
         return $this->CustomerReference;
     }
 
     /**
-     * @param string $CustomerReference
+     * @param ?string $CustomerReference
      *
      * @return AuthenticateSPRequest
      */
-    public function setCustomerReference(string $CustomerReference): AuthenticateSPRequest
+    public function setCustomerReference(?string $CustomerReference): AuthenticateSPRequest
     {
         $this->CustomerReference = $CustomerReference;