Langchain ChatGLM Versions Save

Langchain-Chatchat（原Langchain-ChatGLM）基于 Langchain 与 ChatGLM 等语言模型的本地知识库问答 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM) QA app with langchain

v0.2.0

9 months ago

重要提示

因 v0.2.0 版本与前序版本相比调整较大，使用 v0.2.0 版本时建议先新建环境，重新安装依赖包后，按照readme中开发部署操作顺序进行配置。

自版本 v0.2.0 起，项目正式更名为 Langchain-Chatchat，项目将基于 Langchain 和包含 ChatGLM-6B 在内的开源大语言模型提供持续优化的知识库问答应用。

变更信息

使用 FastChat 提供开源 LLM 模型的 API，以 OpenAI API 接口形式接入，提升 LLM 模型加载效果，并支持近期新出的baichuan-inc/baichuan-7B、internlm/internlm-chat-7b、Qwen/Qwen-7B-Chat等模型；

* 使用 langchain 中已有 Chain 的实现，便于后续接入不同类型 Chain，并将对 Agent 接入开展测试；

* 使用 FastAPI 提供 API 服务，全部接口可在 FastAPI 自动生成的 docs 中开展测试，且所有对话接口支持通过参数设置流式或非流式输出；

* 使用 Streamlit 提供 WebUI 服务，可选是否基于 API 服务启动 WebUI，后续可支持不同形式输出内容的显示；

* 项目中默认 LLM 模型改为 THUDM/chatglm2-6b，默认 Embedding 模型改为 moka-ai/m3e-base，文件加载方式与文段划分方式也有调整，后续将重新实现上下文扩充，并增加可选设置；

* 项目中扩充了对不同类型向量库的支持，除支持 FAISS 向量库外，还提供 Milvus, PGVector 向量库的接入；

* 项目中搜索引擎对话，除 Bing 搜索外，增加 DuckDuckGo 搜索选项，DuckDuckGo 搜索无需配置 API Key，在可访问国外服务环境下可直接使用。

主要贡献者

@imClumsyPanda @liunux4odoo @zqt996 @hzg0601 @glide-the @inksong

v0.1.17

10 months ago

重要提示

本版本为 langchain-ChatGLM v0.1.x 最后一个版本，接下来开发团队将全部精力投入到 v0.2.0 版本的开发，新版本将尽快完成上线。

变更信息

Update MyFAISS.py by @foxmoon in https://github.com/chatchat-space/langchain-ChatGLM/pull/648
解决vue前端镜像构建失败的问题 by @hzhaoy in https://github.com/chatchat-space/langchain-ChatGLM/pull/636
fix:前端知识库获取失败. 修改获取及删除接口至knowledge_base by @1729457433 in https://github.com/chatchat-space/langchain-ChatGLM/pull/653
Revert 653 dev 1 by @fxjhello in https://github.com/chatchat-space/langchain-ChatGLM/pull/657
标题增强 by @kiddog99 in https://github.com/chatchat-space/langchain-ChatGLM/pull/631
整理了下issue的问题，方便新手入门 by @fengyunzaidushi in https://github.com/chatchat-space/langchain-ChatGLM/pull/669
Fix #675: 解决因vue前端代码有误导致镜像构建失败的问题 by @hzhaoy in https://github.com/chatchat-space/langchain-ChatGLM/pull/679
前端知识库相关接口报错修复 by @sivdead in https://github.com/chatchat-space/langchain-ChatGLM/pull/651
Dev streaming oom by @allseeeeeee in https://github.com/chatchat-space/langchain-ChatGLM/pull/722
向Readme添加Docker整合包描述 by @inksong in https://github.com/chatchat-space/langchain-ChatGLM/pull/746
fix 2 bugs on streamlit demo by @neverless00 in https://github.com/chatchat-space/langchain-ChatGLM/pull/719
Add device_map config to support chatglm2-6b by @Jingsong-Yan in https://github.com/chatchat-space/langchain-ChatGLM/pull/734
修复api接口websocket的伪流式输出 by @zzxs in https://github.com/chatchat-space/langchain-ChatGLM/pull/628
1. 修改stream_chat的接口，在请求体中选择knowledge_base_id;2. 增加stream_chat_bing接口；3. 增加了调用流式接口的方法说明；4. 优化cli_demo.py的逻辑：支持输入提示；多输入；重新输入 by @hzg0601 in https://github.com/chatchat-space/langchain-ChatGLM/pull/630
Update model_config.py by @stc2001 in https://github.com/chatchat-space/langchain-ChatGLM/pull/768
添加启动API的参数，支持https、wss方式API调用 by @zfanswer in https://github.com/chatchat-space/langchain-ChatGLM/pull/728
解决 image_loader.py 运行时报错“ModuleNotFoundError: No module named 'configs'”的问题。 by @ysyx2008 in https://github.com/chatchat-space/langchain-ChatGLM/pull/795
fix:The knowledge base name cannot be empty. by @kztao in https://github.com/chatchat-space/langchain-ChatGLM/pull/793
Update README.md， 0.1.16版本已经支持删除知识库中的文件 by @kztao in https://github.com/chatchat-space/langchain-ChatGLM/pull/792
1.增加对llama-cpp模型的支持；2.增加对bloom/chatyuan/baichuan模型的支持；3. 修复多GPU部署的bug;4. 修复了moss_llm.py的bug；5. 增加对openai支持（没有api,未测试);6. 支持在多卡情况自定义设备GPU by @hzg0601 in https://github.com/chatchat-space/langchain-ChatGLM/pull/664
feat: fastapi 接口优化 by @NieLamu in https://github.com/chatchat-space/langchain-ChatGLM/pull/684
修改默认的多卡部署方案，基本保证针对新模型也不会失败 by @hzg0601 in https://github.com/chatchat-space/langchain-ChatGLM/pull/788
测试OPENAI接口成功 by @hzg0601 in https://github.com/chatchat-space/langchain-ChatGLM/pull/813
添加新支持的LLM(bloomz-7b1,bloom-3b,baichuan-7b,vicuna-13b-delta-1.1) by @kztao in https://github.com/chatchat-space/langchain-ChatGLM/pull/845
fix Non-UTF-8 code starting with \xe5 by @kztao in https://github.com/chatchat-space/langchain-ChatGLM/pull/849
更新 streamlit ui by @liunux4odoo in https://github.com/chatchat-space/langchain-ChatGLM/pull/850
Fix LocalDocQA object has no attribute llm when adding docs by @benjaminhuo in https://github.com/chatchat-space/langchain-ChatGLM/pull/852
fix issue#580: 新建知识库出错 by @liunux4odoo in https://github.com/chatchat-space/langchain-ChatGLM/pull/880
在args.py中增加ptuning相关的参数 by @hzg0601 in https://github.com/chatchat-space/langchain-ChatGLM/pull/838
1 修复model_config.py的type;2 修改默认的LLM_model;3. 移除chatglm_llm.py的无用模块 by @bones-zhu in https://github.com/chatchat-space/langchain-ChatGLM/pull/904
解决加载ptuning检查点失败的问题 by @chinainfant in https://github.com/chatchat-space/langchain-ChatGLM/pull/905
[Fix] INSTALL.md by @JimmyMa99 in https://github.com/chatchat-space/langchain-ChatGLM/pull/907
完善api.py，增加LLM对话和知识库对话的流式输出功能 by @margox in https://github.com/chatchat-space/langchain-ChatGLM/pull/659
安装教程conda create新增默认的/envs下面，而不只是只能要额外指定路径用-p by @KennyNg-19 in https://github.com/chatchat-space/langchain-ChatGLM/pull/482
support chatglm2cpp by @cylee0909 in https://github.com/chatchat-space/langchain-ChatGLM/pull/859
Update FAQ.md by @YikunHan42 in https://github.com/chatchat-space/langchain-ChatGLM/pull/1006
添加语音模块 by @nanayashiki1215 in https://github.com/chatchat-space/langchain-ChatGLM/pull/1039
Update MyFAISS.py by @chiquitita-101 in https://github.com/chatchat-space/langchain-ChatGLM/pull/1041
Adding an implementaion for involving with accessing Baichuan-13B-Chat（接入baichuan-13b-chat逻辑） by @Vincent-ch99 in https://github.com/chatchat-space/langchain-ChatGLM/pull/1005
线性简单实现了：vecorstores/MyFAISS.py TODO: 增加是否属于同一文档的判断 by @Wu-Fisher in https://github.com/chatchat-space/langchain-ChatGLM/pull/945

New Contributors

@foxmoon made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/648
@hzhaoy made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/636
@1729457433 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/653
@fxjhello made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/657
@kiddog99 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/631
@sivdead made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/651
@allseeeeeee made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/722
@inksong made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/746
@neverless00 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/719
@Jingsong-Yan made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/734
@stc2001 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/768
@zfanswer made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/728
@ysyx2008 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/795
@kztao made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/793
@benjaminhuo made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/852
@bones-zhu made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/904
@chinainfant made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/905
@JimmyMa99 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/907
@margox made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/659
@KennyNg-19 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/482
@cylee0909 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/859
@YikunHan42 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/1006
@nanayashiki1215 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/1039
@chiquitita-101 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/1041
@Vincent-ch99 made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/1005
@Wu-Fisher made their first contribution in https://github.com/chatchat-space/langchain-ChatGLM/pull/945

Full Changelog: https://github.com/chatchat-space/langchain-ChatGLM/compare/v0.1.16...v0.1.17

v0.1.16

11 months ago

What's Changed

1. 新增功能

新增自定义 vectorstore 实现类 MyFAISS，增加对 FAISS 向量库中全部文件列表查询、指定文件对应向量删除、指定文件向量替换。
在 WebUI 和 API 中提供删除知识库、从知识库中删除指定文件的功能。

2. 问题修复

修复 pdf_loader 和 image_loader 进行测试时可能发生未找到 configs 的问题（感谢 @you-can-change 在 https://github.com/imClumsyPanda/langchain-ChatGLM/issues/112#issuecomment-1579790229 中提出的解决方案）
修复知识库多次检索时，内容可能发生叠加的问题（感谢 @jkmchinese 在 https://github.com/imClumsyPanda/langchain-ChatGLM/issues/613#issuecomment-1590460465 中提出的解决方案）
更新 README.md by @Lix1993 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/608
修复[bug] #598 #601，解决通过cli.py启动api、cli失败的问题 by @hzg0601 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/599
更新FAQ,model_config.py,bing_search.py文件，增加bing搜索问答相关问题的原因和可能解决方案，修复了一些typo;修改loader.py中load_in_8bit失败的原因和详细解决方案 by @hzg0601 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/610

New Contributors

@Lix1993 made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/608

Full Changelog: https://github.com/imClumsyPanda/langchain-ChatGLM/compare/v0.1.15...v0.1.16

v0.1.15

1 year ago

What's Changed

1. 新增功能

WebUI 中现已支持刷新页面自动更新知识库列表 by @youyajike in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/529
增加对 moka-ai/m3e-small 和 moka-ai/m3e-base 两种 embedding 模型的支持

2. 问题修复

VUE 前端默认端口从 1002 调整为 8090 by @NieLamu in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/555
修复中 WebUI 中仅显示一轮对话的BUG by @sysalong in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/570
更新了requrements.txt和FAQ，解决了 #591 #592 by @hzg0601 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/593
修复 api.py 中 json 解析问题 by @zzxs in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/540

New Contributors

@youyajike made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/529
@zzxs made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/540
@NieLamu made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/555
@hzg0601 made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/593

Full Changelog: https://github.com/imClumsyPanda/langchain-ChatGLM/compare/v0.1.14...v0.1.15

v0.1.14

1 year ago

What's Changed

新增功能

新增通过 FastChat API 调用 LLM 的方式，实现了更多 LLM 的支持，并有效提升 LLM 回复速度 by @glide-the
新增 lru_cache 函数以提升本地向量库加载速度 by @liunux4odoo in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/496
Web UI 中增加更新知识库列表按钮，以解决刷新页面后 gradio 不支持自动更新知识库选项列表问题 by @imClumsyPanda
添加streamlit ui by @liunux4odoo in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/480
添加重新初始化 uploadpath 内文档的按钮 by @zhoutongqing in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/418

问题修复

更新 Dockerfile-cuda by @zhubao315 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/446
修改：读取本地知识文件时，能够读取给定目录下全部（包括直接和间接属于该目录）文件 by @DingJunyao in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/471
修复 api 中 delete_docs 的 bug by @yihuaxiang in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/499
修复上传 PDF 文件后可能提示 tmp.png 文件不存在的问题 by @imClumsyPanda
修复上传文件后可能提示本地缺少 faiss.index 导致文件上传至知识库失败的问题 by @imClumsyPanda

New Contributors

@zhubao315 made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/446
@liunux4odoo made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/480
@DingJunyao made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/471
@yihuaxiang made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/499
@zhoutongqing made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/418

Full Changelog: https://github.com/imClumsyPanda/langchain-ChatGLM/compare/v0.1.13...v0.1.14

v0.1.13

1 year ago

What's Changed

新增功能

新建llm接口类，并将chatglm与moss重新根据接口类定义实现类 by @glide-the
调整 model_config 中的 llm_model_dict 定义形式 by @glide-the
在 Web UI 和 vue 前端中增加bing搜索支持，目前仅支持使用知识库或使用bing搜索进行问答，同时使用知识库与bing搜索的功能将在后续进行支持。by @halfss in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/378
添加命令行管理脚本 by @zqt996 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/355
增加删除知识库中原始文件 by @halfss in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/365
更新 README.md
更新 install 说明，解决 PaddleOCR 依赖问题 by @changxubo in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/387

问题修复

导入txt过程中可能存在的编码问题
导入pdf过程中可能存在的转换为txt后的编码问题，及可能出现unsupported colorspace for 'png’ 的问题
修复 vue 前端中上传文件的问题 by @halfss in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/362
更新 api.py by @cd9807 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/357
修复 MOSS模型加载BUG by @changxubo in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/389
vue 前端 UI 修复 by @halfss in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/394
修复历史记录最后一条丢失 by @zhenkaivip in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/415
修复对话中换行连读造成歧义 by @zhenkaivip in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/415
修复每次对话携带多余数据的问题 by @mayflyfy in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/425

New Contributors

@halfss made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/362
@zqt996 made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/355
@mayflyfy made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/425

Full Changelog: https://github.com/imClumsyPanda/langchain-ChatGLM/compare/v0.1.12...v0.1.13

v0.1.12

1 year ago

What's Changed

1. 新增功能

增加对 png 和 jpg 格式图片的 OCR 识别载入，基于 PaddleOCR 实现【使用前请先确认已卸载detectron2】by @zhenkaivip in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/344
更新对 pdf 文件的读取方法，支持中英双语，基于 PaddleOCR 实现【使用前请先确认已卸载detectron2】by @zhenkaivip in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/344
增加允许跨域调用API功能 by @hikariming in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/279
增加对 MOSS 的支持 by @ykk648 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/317
增加传入单个文件与LLM对话接口 by @keenzhu

2. 问题修复

修复 chatglm 两次初始化的问题 by @ykk648 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/313
修复多卡运行时 lora 模型加载问题 by @ykk648 and @RainGather in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/312 and https://github.com/imClumsyPanda/langchain-ChatGLM/pull/316
修复 local_doc_qa.py 中 logger 问题 by @RainGather in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/323
修复 cli_demo.py 中可能存在无法正常显示流式输出内容的问题 by @imClumsyPanda
修复 api.py 中可能存在的现有接口运行错误问题 by @imClumsyPanda

New Contributors

@hikariming made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/279
@ykk648 made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/313
@RainGather made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/316
@zhenkaivip made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/342

Full Changelog: https://github.com/imClumsyPanda/langchain-ChatGLM/compare/v0.1.11...v0.1.12

v0.1.11

1 year ago

What's Changed

1. 新增功能

Web UI 中新增加知识库 Beta 页面，提供知识库名分句、匹配测试 by @sysalong in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/302
新增基于 Vue 的前端页面 by @fxjhello
新增 logging 格式日志输出 by @changxubo in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/268

2. 问题修复

修复默认知识库获取的逻辑 by @mokeyish in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/293
修复 logger bug by @oushu1zhangxiangxuan1 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/297

New Contributors

@mokeyish made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/293
@oushu1zhangxiangxuan1 made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/297

Full Changelog: https://github.com/imClumsyPanda/langchain-ChatGLM/compare/v0.1.10...v0.1.11

v0.1.10

1 year ago

What's Changed

1. 新增功能

优化针对中文文本字符的分句方式 by @imClumsyPanda
增加基于语义的分句方式 by @cd9807 in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/248
支持 Lora 权重加载 by @sysalong in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/231
webui 中增加 Flagging 日志收集问答效果。 by @changxubo in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/250
更新 INSTALL.md by @lenosp in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/223

2. 问题修复

修复 similarity_search_with_score_by_vector 函数返回多个文段时的 score 共用了相同结果的错误 by @imClumsyPanda
修复扩展文档的代码逻辑 by @winterggg in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/227
修复知识库无法上载，NLTK_DATA_PATH路径错误 by @changxubo in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/236
完善知识库路径问题，完善api接口 by @sysalong in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/245
更新 requirements.txt 中 gradio 版本要求，修复知识库下拉框 change 事件获取值不是当前选中值的bug。 by @changxubo in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/261

New Contributors

@lenosp made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/223
@winterggg made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/227
@sysalong made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/231
@changxubo made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/236
@cd9807 made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/248

Full Changelog: https://github.com/imClumsyPanda/langchain-ChatGLM/compare/v0.1.9...v0.1.10

v0.1.9

1 year ago

What's Changed

1. 新增功能

使用 fastapi 实现 API by @BrightXiaoHan in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/209
添加了Dockerfile-cuda , 提供GPU Docker支持 by @cocoman in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/197
更新 README.md 中原理介绍、AutoDL 镜像链接等。

2. 问题修复

修复上一版本中可能存在低版本 torch.mps 调用问题，改为仅在 mps 可用时导入相关函数。

New Contributors

@BrightXiaoHan made their first contribution in https://github.com/imClumsyPanda/langchain-ChatGLM/pull/209

Full Changelog: https://github.com/imClumsyPanda/langchain-ChatGLM/compare/v0.1.8...v0.1.9