Update app.py

app.py

@@ -18,6 +18,9 @@ REQUEST_LATENCY = Histogram('gradio_request_latency_seconds', 'Request latency i
 # --- Logging Setup ---
 logging.basicConfig(filename="chat_log.txt", level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
 
+# --- Queue and Metrics ---
+chat_queue = Queue()  # Define chat_queue globally
+
 # --- Chat Function with Monitoring ---
 def chat_function(message, history):
     with REQUEST_LATENCY.time():
@@ -109,3 +112,4 @@ demo.launch(share=True)
 
 
 
+