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from langchain.chains.qa_with_sources.retrieval import RetrievalQAWithSourcesChain
from langchain_community.chat_models import ChatOpenAI
import logging
import os
from langchain.chains import ConversationalRetrievalChain
from src.config import Config
def load_model():
model = ChatOpenAI(model_name=Config.model_name,
temperature=Config.temperature,
streaming=Config.streaming)
return model
def load_chain(docsearch):
model = load_model()
chain = ConversationalRetrievalChain.from_llm(load_model,
chain_type=Config.chain_type,
retriever=docsearch.as_retriever(),
memory=Config.memory,
return_source_documents=True,
)
return chain
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