# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2017-02-15 17:19:22 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/831915820636897282) In reply to: [@benedictC](http://twitter.com/benedictC/status/831913440147038209) @benedictC trying to determine the original numerical type that JSONSerializer wrapped in an NSNumber