Update app.py

app.py

@@ -1,6 +1,7 @@
 import gradio as gr
 from llama_index import VectorStoreIndex, SimpleDirectoryReader
 from langchain.embeddings.huggingface import HuggingFaceEmbeddings
+from langchain.embeddings import HuggingFaceEmbeddings
 from llama_index import LangchainEmbedding, ServiceContext
 from llama_index import StorageContext, load_index_from_storage
 from llama_index import LLMPredictor
@@ -11,6 +12,8 @@ import string
 import os
 from dotenv import load_dotenv
 load_dotenv()
+from time import sleep
+import requests
 
 HUGGINGFACEHUB_API_TOKEN = os.getenv("HUGGINGFACEHUB_API_TOKEN")
 repo_id = os.getenv("repo_id")