Update app.py

app.py

@@ -60,6 +60,10 @@ def chat(message, history):
     if len(history_openai_format) == 1:
         client, assistant, thread = init_assistant()
 
+    client = client
+    assistant = assistant
+    thread = thread
+    
     show_json("assistant", assistant)
     show_json("thread", thread)