Update app.py

app.py

@@ -1,15 +1,22 @@
-import os
-import logging
-from dotenv import load_dotenv
-from fastapi import FastAPI, Request, Form
-from fastapi.responses import JSONResponse, HTMLResponse
-from fastapi.middleware.cors import CORSMiddleware
-from fastapi.templating import Jinja2Templates
-from langchain_community.chat_models import ChatOpenAI  # Correct import
-from langchain_community.embeddings import OpenAIEmbeddings  # Correct import
+from langchain.chat_models import ChatOpenAI
+from langchain.embeddings import OpenAIEmbeddings
 from langchain.chains import LLMChain
 from langchain.prompts import PromptTemplate
-from langchain_community.vectorstores import FAISS  # Correct import
+from langchain.schema.messages import HumanMessage, SystemMessage
+from langchain.schema.document import Document
+from langchain.vectorstores import FAISS
+from langchain.retrievers.multi_vector import MultiVectorRetriever
+import os
+import uuid
+import base64
+from fastapi import FastAPI, Request, Form, Response, File, UploadFile
+from fastapi.responses import HTMLResponse, JSONResponse
+from fastapi.templating import Jinja2Templates
+from fastapi.encoders import jsonable_encoder
+from fastapi.middleware.cors import CORSMiddleware
+import json
+from dotenv import load_dotenv
+load_dotenv()
 
 # Load environment variables
 load_dotenv()