Update app.py

app.py

@@ -99,8 +99,6 @@ class ChatWrapper:
             self.lock.release()
         return history, history
 
-chat = ChatWrapper()
-
 block = gr.Blocks(css=".gradio-container {background-color: lightgray}")
 
 with block:
@@ -117,6 +115,9 @@ with block:
 
     chatbot = gr.Chatbot()
 
+    chat = ChatWrapper()
+
+
     with gr.Row():
         message = gr.Textbox(
             label="What's your question?",