from abc import ABC, abstractmethod
from typing import List, Dict, AsyncGenerator


class LLM(ABC):
    @abstractmethod
    async def generate_response_stream(
        self, transcript: str, history: List[Dict[str, str]], selected_role: dict
    ) -> AsyncGenerator[str, None]:
        
        pass

    async def close(self):
        
        pass

    async def connect(self):
        
        pass