Update app.py

app.py

@@ -200,7 +200,9 @@ logo_html = '''
 # Create a Blocks layout with the custom HTML and ChatInterface
 with gr.Blocks(theme=gr.themes.Monochrome(), fill_height=True,css=css) as demo:
     gr.HTML(logo_html)
-    gr.ChatInterface(predict)
+    gr.ChatInterface(predict,clear_btn=None, 
+                     undo_btn=None, 
+                     retry_btn=None)
 
 # Launch the interface
 demo.launch()