as described in [the Pydantic docs](https://docs.pydantic.dev/1.10/usage/exporting_models/#modeldict) for `exclude_defaults` and `exclude_none`.
as described in [the Pydantic docs](https://pydantic.dev/docs/validation/latest/concepts/serialization/#excluding-and-including-fields-based-on-their-value) for `exclude_defaults` and `exclude_none`.