model subclass missing model find methods (like findOne)

Well I didn't find anyone else listing this problem so I'm sure I'm misunderstanding the doc but can't figure what I'm doing wrong.

 

I'm trying to get a subclass of a model created based on the examples on the canJs site and eventually get it hooked up to a fixture to simulate the loading of data. 

 

This is what I'm doing:
1) constructed a fixture for the url
       note that the problem occurs whether fixture was created or not
2) constructed model base class with can.Model()
  var moptions1 =
  {
   findAll:  "GET /todos",
   findOne:  "GET /todos/{id}",
   create:   "POST /todos",
   update:   "PUT /todos/{id}",
   destroy:  "DELETE /todos/{id}",
   tdee:  "amTdee",

  };
  var moptions2 =
  {
   tdum: "amTdum"
  };
  var CustDtlModel = can.Model( moptions1, moptions2 );
3) constructing new instance of derived model to load from fixture/server
  var cm1 = new CustDtlModel();
4) cannot call cm1.findOne() because the method does not exist in the cm1 object or its prototype

 

what am I missing here?

Thanks for any help.

Rand.