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

class BaseRetriever(ABC):
    """检索策略的基类"""
    
    @abstractmethod
    def retrieve(self, query: str, context: List[Dict]) -> List[Dict]:
        """执行检索"""
        pass
    
    @abstractmethod
    def init_retriever(self, config: Dict):
        """初始化检索器"""
        pass