app/llm/llm_interface.py

from abc import ABC, abstractmethod
from langchain_core.messages import BaseMessage


class LLMInterface(ABC):
    @abstractmethod
    def query(self, messages: list[BaseMessage]) -> BaseMessage:
        """Query the LLM with a list of messages"""
        pass

    @abstractmethod
    async def aquery(self, messages: list[BaseMessage]) -> BaseMessage:
        """Asynchronously query the LLM with a list of messages"""
        pass