How to log and delete keychain items from your iOS app

Firebase, among other iOS libraries can install items in a device keychain and it can become pretty painful to test authentication without having to reinitialize the simulator, and it gets even more complicated on a real device.

Here is a little piece of code that will output what are the items your app can access in the keychain, and will either output them, delete them or both.

This should be enabled for debug/development purposes only, you probably don't want to use this code in a production environment.