Merge pull request #1144 from MilesChou/open-visibility-for-slack-handlers

Adjust visibility of some properties to protected for extend slack handlers

src/Monolog/Handler/SlackHandler.php

@@ -75,6 +75,11 @@ class SlackHandler extends SocketHandler
         return $this->slackRecord;
     }
 
+    public function getToken()
+    {
+        return $this->token;
+    }
+
     /**
      * {@inheritdoc}
      *