def language_to_service_language(self, language: Language | List[Language]) -> str | List[str]:
        """Convert Language enum(s) to Google STT language code(s).

        Args:
            language: Single Language enum or list of Language enums.

        Returns:
            str | List[str]: Google STT language code(s).
        """
        if isinstance(language, list):
            return [language_to_google_stt_language(lang) or "en-US" for lang in language]
        return language_to_google_stt_language(language) or "en-US"
Convert Language enum(s) to Google STT language code(s).

        Args:
            language: Single Language enum or list of Language enums.

        Returns:
            str | List[str]: Google STT language code(s).
        
src/pipecat/services/google/stt.py