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

    }

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

        guard
            let serverUrl = hostToServerUrl(notification.host),
            let index = DatabaseManager.serverIndexForUrl(serverUrl)
        else {
            return false
        }

        // side effect: needed for Subscription.notificationSubscription()
