Update app.py

app.py

@@ -271,19 +271,19 @@ with gr.Blocks(
 
 
         #with gr.Blocks() as demo:
-            chatbot = gr.Chatbot()
-            username_input = gr.Textbox(label="Username")
-            save_button = gr.Button("Save Chat History")
-            download_button = gr.File(label="Download Chat History", visible=False)
+        chatbot = gr.Chatbot()
+        username_input = gr.Textbox(label="Username")
+        save_button = gr.Button("Save Chat History")
+        download_button = gr.File(label="Download Chat History", visible=False)
         
-            save_button.click(
-                fn=save_chat_history,
-                inputs=[chatbot, username_input],
-                outputs=download_button
-            ).then(
-                fn=lambda: gr.update(visible=True),
-                outputs=download_button
-            )
+        save_button.click(
+            fn=save_chat_history,
+            inputs=[chatbot, username_input],
+            outputs=download_button
+        ).then(
+            fn=lambda: gr.update(visible=True),
+            outputs=download_button
+        )
 
 #launching chatbot
 demo.launch()