+ screen_name_field = pack "screen_name"
+
+ -- Do whatever.
+ parseJSON _ = mempty
+
+
+-- | Get the URL for the given screen name's timeline.
+--
+-- Examples:
+--
+-- >>> screen_name_to_timeline_url "washington_irving"
+-- "http://twitter.com/washington_irving"
+--
+screen_name_to_timeline_url :: String -> String
+screen_name_to_timeline_url =
+ ("http://twitter.com/" ++)