using tuples as message type

app.py

@@ -75,8 +75,8 @@ def chat_llama3_1_8b(message: str,
         str: The generated response.
     """
     conversation = []
-
-    # Gradio now supports the Messages API out of the box!
+    for user, assistant in history:
+        conversation.extend([{"role": "user", "content": user}, {"role": "assistant", "content": assistant}])
     conversation.append({"role": "user", "content": message})
 
     input_ids = tokenizer.apply_chat_template(conversation, return_tensors="pt").to(model.device)
@@ -115,7 +115,6 @@ with gr.Blocks(fill_height=True, css=css) as demo:
     gr.ChatInterface(
         fn=chat_llama3_1_8b,
         chatbot=chatbot,
-        type="messages",
         fill_height=True,
         examples_per_page=3,
         additional_inputs_accordion=gr.Accordion(label="⚙️ Parameters", open=False, render=False),