How do I set the language (spanish) for a form recognizer custom model?

Question

Hi!
I am currently using a form recognizer custom model. I have managed to train my model and use the C# SDK to analyze my documents however I have not been able to change the language to Spanish for this model. The documentation says that the language can be specified for the layout and custom model. This is what I have been using:

• SDK: C# v3.1.0
• https://learn.microsoft.com/en-us/azure/cognitive-services/form-recognizer/language-support?tabs=v2-1

Thanks!