This release fixes a validation error in `ReturnConfig` when creating a config with a null `custom_voice`. Previously, this would raise a pydantic `ValidationError`. Now, null values for `custom_voice` are properly handled.
Example of fixed usage:
python
client = AsyncHumeClient(api_key=<HUME_API_KEY>) replace <HUME_API_KEY> with your API key
resp = await client.empathic_voice.configs.create_config(name="test", evi_version=1)
This now works without raising a ValidationError, even if custom_voice is implicitly None