JSON API Document de-serializing and serializing using Spine Swift Library -

i want understand how serialize data take full advantage of json api's

i'm using serializer achieve as:

   let serializer = serializer()    serializer.registerresource(mymodel.self)

what have got ?

  let document = try! serializer.deserializedata(data) //data response nsdata

i'm able json api document included relationships , data as

  document.included

for i'm casting mymodel required data

  mymodel   = document.included[0] as! mymodel

as not intended way utilize json :api, suggestions , missing ?

RT