from langsmith import Client from langchain_deepseek import ChatDeepSeek from langchain_core.output_parsers import StrOutputParser from dotenv import load_dotenv load_dotenv() llm = ChatDeepSeek(model="deepseek-chat", temperature=0) client = Client() prompt = client.pull_prompt("rlm/rag-prompt") generation_chain = prompt | llm| StrOutputParser()