```haskell
{-# LANGUAGE DeriveGeneric #-}

module Types where

import Data.Aeson
import GHC.Generics
import Prelude hiding (id)
```

App
---

1:1 with a Heroku app.

```haskell
data App = App
         { id :: String
         } deriving (Generic, Eq, Show, Read)

instance ToJSON App
instance FromJSON App
```