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| #!/usr/bin/env python | |
| # -*- encoding: utf-8 -*- | |
| ''' | |
| @File : self_llm.py | |
| @Time : 2023/10/16 18:48:08 | |
| @Author : Logan Zou | |
| @Version : 1.0 | |
| @Contact : loganzou0421@163.com | |
| @License : (C)Copyright 2017-2018, Liugroup-NLPR-CASIA | |
| @Desc : 在 LangChain LLM 基础上封装的项目类,统一了 GPT、文心、讯飞、智谱多种 API 调用 | |
| ''' | |
| from langchain.llms.base import LLM | |
| from typing import Dict, Any, Mapping | |
| from pydantic import Field | |
| class Self_LLM(LLM): | |
| # 自定义 LLM | |
| # 继承自 langchain.llms.base.LLM | |
| # 原生接口地址 | |
| url : str = None | |
| # 默认选用 GPT-3.5 模型,即目前一般所说的百度文心大模型 | |
| model_name: str = "gpt-3.5-turbo" | |
| # 访问时延上限 | |
| request_timeout: float = None | |
| # 温度系数 | |
| temperature: float = 0.1 | |
| # API_Key | |
| api_key: str = None | |
| # 必备的可选参数 | |
| model_kwargs: Dict[str, Any] = Field(default_factory=dict) | |
| # 定义一个返回默认参数的方法 | |
| def _default_params(self) -> Dict[str, Any]: | |
| """获取调用默认参数。""" | |
| normal_params = { | |
| "temperature": self.temperature, | |
| "request_timeout": self.request_timeout, | |
| } | |
| # print(type(self.model_kwargs)) | |
| return {**normal_params} | |
| def _identifying_params(self) -> Mapping[str, Any]: | |
| """Get the identifying parameters.""" | |
| return {**{"model_name": self.model_name}, **self._default_params} |