Update app.py

app.py

@@ -1,5 +1,18 @@
 import gradio as gr
 from huggingface_hub import InferenceClient
+from torch import cuda, bfloat16
+import torch
+import transformers
+from transformers import AutoTokenizer
+from time import time
+import chromadb
+from chromadb.config import Settings
+from langchain.text_splitter import RecursiveCharacterTextSplitter
+from langchain.embeddings import HuggingFaceEmbeddings
+from langchain.chains import RetrievalQA
+from langchain.vectorstores import Chroma
+from langchain.document_loaders import PyPDFLoader
+import requests
 
 """
 For more information on `huggingface_hub` Inference API support, please check the docs: https://huggingface.co/docs/huggingface_hub/v0.22.2/en/guides/inference