Update app.py

app.py

@@ -18,12 +18,13 @@ Chat Function
 """
 def chat(message, 
             chatbot, 
+            model= llama_13b
             system_prompt = "", 
             temperature = 0.9,
             max_new_tokens = 256,
             top_p = 0.6,
             repetition_penalty = 1.0,
-            model= llama_13b):
+            ):
 
     # Write the system prompt
     if system_prompt != "":