Update app.py

app.py

@@ -24,7 +24,8 @@ def post_request_beta(payload):
     response.raise_for_status()
     return response.json()
 
-def predict_beta(message, chatbot=[], system_prompt=""):
+def predict_beta(message, chatbot=None, system_prompt=""):
+    chatbot = [] if chatbot is None else chatbot  # Ensure chatbot is not None
     input_prompt = build_input_prompt(message, chatbot, system_prompt)
     data = {"inputs": input_prompt}
     try:
@@ -45,10 +46,12 @@ def predict_beta(message, chatbot=[], system_prompt=""):
         error_msg = f"Failed to decode response as JSON: {str(e)}"
         raise gr.Error(error_msg)
 
-def test_preview_chatbot(message, history):
+def test_preview_chatbot(message, history=None):
+    history = [] if history is None else history  # Ensure history is not None
     response = predict_beta(message, history, SYSTEM_PROMPT)
     return response, EXAMPLE_IMAGE_URL
 
+
 # Launch the interface
 gr.Interface(
     fn=test_preview_chatbot,