Update app.py

app.py

@@ -1,6 +1,7 @@
 
 try:
     import os
+    from typing import Any, Dict, List, Optional
     import gradio as gr
     import torch
     from sentence_transformers import SentenceTransformer
@@ -20,10 +21,11 @@ collection = None
 print(f"🔄 Connecting to ChromaDB from cloud...")
 database = os.environ.get("chromadb_db")
 api_key = os.environ.get("chromadb_api_key")
+tenant=os.environ.get("chromadb_tenant")
 client = chromadb.CloudClient(
-    api_key=os.environ.get("chromadb_api_key"),
-    tenant=os.environ.get("chromadb_tenant"),
-    database=os.environ.get("chromadb_db")
+    api_key=api_key,
+    tenant=tenant,
+    database=database
 )
 print(f"Connection to chromabd successful {database} {api_key}")