Serbian has 2 alphabets, Latin and Cyrillic. Is Latin supported and how to get it ?
According to this post: https://support.google.com/translate/thread/1836538/google-translate-to-serbian-latin?hl=en it should work with explicit longer language code instead of just 'sr' there are 'sr-Latn' and 'sr-Cyrl'. But even with sr-Latn it still translates in the cyrillic alphabet.