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langchain: deprecate LLMChain, RetrievalQA, and ConversationalRetrievalChain (#20751)

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ccurme
2024-04-23 15:55:34 -04:00
committed by William Fu-Hinthorn
parent 286eb6e392
commit d64189009e
4 changed files with 132 additions and 3 deletions
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3
docs/docs/use_cases/question_answering/chat_history.ipynb
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@@ -403,16 +403,13 @@
"outputs": [],
"source": [
"import bs4\n",
"from langchain import hub\n",
"from langchain.chains import create_history_aware_retriever, create_retrieval_chain\n",
"from langchain.chains.combine_documents import create_stuff_documents_chain\n",
"from langchain_chroma import Chroma\n",
"from langchain_community.chat_message_histories import ChatMessageHistory\n",
"from langchain_community.document_loaders import WebBaseLoader\n",
"from langchain_core.chat_history import BaseChatMessageHistory\n",
"from langchain_core.output_parsers import StrOutputParser\n",
"from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder\n",
"from langchain_core.runnables import RunnablePassthrough\n",
"from langchain_core.runnables.history import RunnableWithMessageHistory\n",
"from langchain_openai import ChatOpenAI, OpenAIEmbeddings\n",
"from langchain_text_splitters import RecursiveCharacterTextSplitter\n",