model_fields attribute deprecation warning with Pydantic 2.11

[kulnor]

Greetings:
I'm using SemPyRO to serialize RDF for the DDI-CDI model.
I'm seeing the deprecation warning below with Pydantic 2.11.7
Let me know if you need assistance addressing this issue.
Thanks!

  /Users/pascal/.pyenv/versions/3.13.5/envs/dartfx13/lib/python3.13/site-packages/sempyro/rdf_model.py:193: PydanticDeprecatedSince211: Accessing the 'model_fields' attribute on the instance is deprecated. Instead, you should access this attribute from the model class. Deprecated in Pydantic V2.11 to be removed in V3.0.
    bind_namespace = self.model_fields[field].json_schema_extra.get(BIND_NAMESPACE_KEY)

[agjharms]

Hi kulnor,

Great to hear that you're using SeMPyRO for your model! Updating the package to support a more recent version of Pydantic is planned for a new major release but the timeline is not set yet. If you want to contribute to the project by submitting a PR for these deprecated features, we would very much appreciate it.