Update app.py

app.py

@@ -70,7 +70,8 @@ def chat_with_ai(user_input, chat_history):
     chat_history.append((user_input, response['answer']))
 
     return chat_history, ""
-
+def clear_history():
+    return [], ""
 def gradio_chatbot():
     with gr.Blocks() as demo:
         gr.Markdown("# Chat Interface for Langchain")
@@ -81,11 +82,13 @@ def gradio_chatbot():
         )
 
         submit_button = gr.Button("Send")
-
+        btn_clear = gr.Button("Delete Context") 
         chat_history = gr.State([])
 
         submit_button.click(chat_with_ai, inputs=[user_input, chat_history], outputs=[chatbot, user_input])
         user_input.submit(chat_with_ai, inputs=[user_input, chat_history], outputs=[chatbot, user_input])
+        btn_clear.click(fn=clear_history, outputs=[chatbot, user_input])  
+
 
     return demo