I just noticed my mistake <@U0B8ZP13Q>: `val serve...

# klaxon

[dave08]

I just noticed my mistake @cedric: val serverResponse = paymentResponse.toJson() is what it's supposed to be...

I ran a unit test.. and it worked!! So, sealed classes are also good in Klaxon... thanks alot for this library! Originally I switched to it for default values and the `null`s that end up in `val`s in the Gson implementation... but I see it really covers alot of my needs for api contract classes...!