68 lines
1.7 KiB
Python
68 lines
1.7 KiB
Python
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#!/usr/bin/env python
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# -*- coding:utf-8 _*-
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"""
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@author:quincy qiang
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@license: Apache Licence
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@file: generate.py
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@time: 2023/04/17
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@contact: yanqiangmiffy@gamil.com
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@software: PyCharm
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@description: coding..
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"""
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from typing import List, Optional
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from langchain.llms.base import LLM
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from langchain.llms.utils import enforce_stop_tokens
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from transformers import AutoModel, AutoTokenizer
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class ChatGLMService(LLM):
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max_token: int = 10000
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temperature: float = 0.1
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top_p = 0.9
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history = []
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tokenizer: object = None
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model: object = None
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def __init__(self):
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super().__init__()
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@property
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def _llm_type(self) -> str:
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return "ChatGLM"
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def _call(self,
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prompt: str,
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stop: Optional[List[str]] = None) -> str:
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response, _ = self.model.chat(
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self.tokenizer,
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prompt,
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history=self.history,
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max_length=self.max_token,
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temperature=self.temperature,
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)
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if stop is not None:
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response = enforce_stop_tokens(response, stop)
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self.history = self.history + [[None, response]]
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return response
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def load_model(self,
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model_name_or_path: str = "THUDM/chatglm-6b"):
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self.tokenizer = AutoTokenizer.from_pretrained(
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model_name_or_path,
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trust_remote_code=True
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)
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self.model = (
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AutoModel.from_pretrained(
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model_name_or_path,
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trust_remote_code=True)
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.half()
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.cuda()
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)
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# if __name__ == '__main__':
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# config=LangChainCFG()
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# chatLLM = ChatGLMService()
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# chatLLM.load_model(model_name_or_path=config.llm_model_name)
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