From cdbee13e11663c4bdcfd770a94d7782246110905 Mon Sep 17 00:00:00 2001
From: Benjamin Blake <ben@sitelease.ca>
Date: Fri, 28 Feb 2020 12:01:46 -0700
Subject: [PATCH] Updated RequestChanable Interface and Trait

+ Fixed an error that was caused by the use of the "self" type-hint in a trait
+ Added more  type-hints to the `setCaller()` method
---
 src/Core/Interfaces/RequestChainableInterface.php | 2 +-
 src/Core/Traits/RequestChainable.php              | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Core/Interfaces/RequestChainableInterface.php b/src/Core/Interfaces/RequestChainableInterface.php
index c1ecf0f..5cf32a2 100644
--- a/src/Core/Interfaces/RequestChainableInterface.php
+++ b/src/Core/Interfaces/RequestChainableInterface.php
@@ -28,7 +28,7 @@ interface RequestChainableInterface
      *
      * @return self
      */
-    public function setCaller($object): self;
+    public function setCaller(?object $object);
 
     /**
      * Return the request chain heirarchy
diff --git a/src/Core/Traits/RequestChainable.php b/src/Core/Traits/RequestChainable.php
index 1d37f08..7721295 100644
--- a/src/Core/Traits/RequestChainable.php
+++ b/src/Core/Traits/RequestChainable.php
@@ -40,7 +40,7 @@ trait RequestChainable
      *
      * @return self
      */
-    public function setCaller($object): self
+    public function setCaller(?object $object)
     {
         $this->caller = $object;
         return $this;