In Report Template Generator (RTG) 3DEXPERIENCE, when navigating:

MBOM
→ Manufacturing Sub-Items
→ Reference (Manufacturing Item)

the returned object is typed as DELFmiFunctionReference.

How can I access the extensions deployed on the business subtypes:CreateAssembly, CreateMaterial, CreateKit, Provide, ManufacturingConfigurationItem, and ManufacturingIntermediateItem?

Is there an OTScript/EKL method that allows retrieval of the concrete business object or its extensions from a DELFmiFunctionReference instance?