Nabu Casa Cloud TTS cache setting

I just got the tts.cloud_say setup in my automations but have a question. I can see the tts folder filling up with mp3 from the service. Is there a way to disable caching like with google_translate? If not, do these files get deleted automatically after awhile or will I need to create some kind of job to do that?

Thanks!

sorry for bumping this, but I only found this now… Did you wever get an answer to this (noticed I had almost 2000 mp3’s so guess they are not auto-deleted…)