Upload app.py with huggingface_hub

app.py

@@ -32,7 +32,7 @@ def post_request_beta(payload):
     return response.json()
 
 
-def predict_beta(message, chatbot=[], system_prompt):
+def predict_beta(message, chatbot=[], system_prompt=""):
     input_prompt = build_input_prompt(message, chatbot, system_prompt)
     data = {
         "inputs": input_prompt