from abc import ABC, abstractmethod
from typing import Optional, List, Any


class TTS(ABC):
    @abstractmethod
    async def tts(
        self,
        text: str,
        output_file_prefix: Optional[str] = None,
        tts_format: str = "mp3",
        selected_role: dict = None,
        session: Optional[Any] = None,
        language: str = None,  
    ) -> Optional[List[str]]:
        
        pass

    @abstractmethod
    async def connect(self):
        
        pass

    @abstractmethod
    async def close(self):
        
        pass