C# code generation of object nodes using model compiler|OPC UA Implementation: Stacks, Tools, and Samples|Forum|OPC Foundation

The generated code from the model design generates a corresponding class in C# for each objectType node. When it comes to object nodes, it generates C# instances of baseObjectType (baseVariableType in case of variable nodes) instead of the type referenced by hasTypeDefinition. For example, for an object node with a hasTypeDefinition to stateType (stateMachineState in the code), you will get an instance of baseObjectType(baseObjectState in the code) and as a result you can not use it for the state machines. Is it a design choice. How is the user expected to use this part?