Update app.py

app.py

@@ -55,6 +55,7 @@ def chat(message, npc_name, prompt, top_p, temperature, max_new_tokens, history=
     print("max_new_tokens", max_new_tokens)
     print("history", history)
     response = "Test"
+    history.append((message, response))
     """
     history = gr.get_state() or []
     history.append((message, ""))