Add Illuminate\Session\Store::setHandler() (#44736)

Author: stancl

src/Illuminate/Session/Store.php

@@ -732,6 +732,17 @@ public function getHandler()
         return $this->handler;
     }
 
+    /**
+     * Set the underlying session handler implementation.
+     *
+     * @param  \SessionHandlerInterface  $handler
+     * @return void
+     */
+    public function setHandler(SessionHandlerInterface $handler)
+    {
+        return $this->handler = $handler;
+    }
+
     /**
      * Determine if the session handler needs a request.
      *