실시간으로 텍스트를 노출시키는 방법 임 문서검색의 최종본 from langchain.prompts import ChatPromptTemplate from langchain.document_loaders import UnstructuredFileLoader from langchain.embeddings import CacheBackedEmbeddings, OpenAIEmbeddings from langchain.schema.runnable import RunnableLambda, RunnablePassthrough from langchain.storage import LocalFileStore from langchain.text_splitter import CharacterTextSplitter from ..