Llm, Rag, Knowledge Graphs, Vector Search, Retrieval Augmented.
PyPDFLoader from langchain_openai import OpenAIEmbeddings from langchain_community.vectorstores import FAISS from langchain_openai import OpenAIEmbeddings from langchain_core.output_parsers import StrOutputParser from langchain_core.runnables import RunnablePassthrough from langchain_openai import