Update app.py

app.py

@@ -1,3 +1,17 @@
+from datetime import datetime
+from llama_index.core import VectorStoreIndex, SimpleDirectoryReader
+from llama_index.embeddings.huggingface import HuggingFaceEmbedding
+from llama_parse import LlamaParse
+from llama_index.llms.huggingface_api import HuggingFaceInferenceAPI
+import os
+from dotenv import load_dotenv
+import gradio as gr
+import markdowm as md
+import base64
+
+# Load environment variables
+load_dotenv()
+
 # Mapping for display names and actual model names
 llm_display_names = {
     "tiiuae/falcon-7b-instruct": "HundAI",