         guard
             let serverUrl = hostToServerUrl(notification.host),
             let index = DatabaseManager.serverIndexForUrl(serverUrl)
-            else {
-                return false
+        else {
+            return false
         }
 
         // side effect: needed for Subscription.notificationSubscription()

    }

    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
        PushManager.handleNotification(raw: response.notification.request.content.userInfo,
                                       reply: (response as? UNTextInputNotificationResponse)?.userText)
    }
}

            let roomType = json["type"]?.string,
            let roomId = json["rid"]?.string
        else {
            return nil
        }

        self.host = host
