Add support for Language parameter in TextToSpeach API endpoint

[Mylan719]

Feature Request

Is your feature request related to a problem? Please describe.

The new Eleven Labs API supports now optional language parameter for model Turbo V2.5 https://elevenlabs.io/docs/api-reference/text-to-speech

From documentation

language_code: string

Language code (ISO 639-1) used to enforce a language for the model. Currently only Turbo v2.5 supports language enforcement. For other models, an error will be returned if language code is provided.

Describe the solution you'd like

• It would be nice to add parameter for language code to TextToSpeechRequest so we could use full potential of Turbo V2
• Maybe please add error if the parameter is added in combination with some other model.

[xbenderCH]

Wonderful! Any estimation when you release the new version? Thanks for all your effort!

[StephenHodgson]

maybe this weekend, but don't give your hope up 😅