New RPC/Go interface idea.

foo.avdl

@namespace("foo.1")
protocol bar {
  A myfunc(b B, c C);
}

foo.go

type MyfuncArg struct {
  B B;
  C C;
}

func BarProtocol(i BarInterface) rpc.Protocol {
	return rpc.Protocol{
		Name: "keybase.1.bar",
		Methods: map[string]rpc.ServeHookDescription{
			"myfunc" : rpc.ServeHookDescription{
				ArgType : reflect.TypeOf(MyfuncArg),
				Func : func(arg interface{}) (ret interface{}, err error) {
					return i.Myfunc(arg);
				},
			},
		},
	}
}