Update rag_api.py

rag_api.py

@@ -5,10 +5,8 @@ from langchain_community.vectorstores import FAISS
 from fastapi import FastAPI
 from pydantic import BaseModel
 from langchain_huggingface import HuggingFaceEmbeddings
-# from langchain_community.chains import RetrievalQA
-# from langchain.schema.runnable import RunnablePassthrough
 from langchain_core.runnables import RunnablePassthrough
-from langchain.prompts import PromptTemplate
+from langchain_core.prompts import PromptTemplate
 from langchain_groq import ChatGroq