Background:

For inheritance cases, we deserialize model by iterating all the properties including the properties in the base model, instead of delegating the serialization of properties in base model to the base model itself. This leads to duplicate code in derived model and base model.

We already implemented JsonModelWriteCore to serialization process, but not for deserialization process. Customer is still struggling to maintain two sets of same code.

Information:

Refer to previous unfinished design:
Azure/azure-sdk-for-net#43765
Azure/azure-sdk-for-net#43571