Update app.py

app.py

@@ -387,6 +387,7 @@ from langgraph.graph import StateGraph, END
 from pydantic import BaseModel
 import gradio as gr
 import os
+import time 
 if os.environ.get("SPACES_ZERO_GPU") is not None:
     import spaces
 else:
@@ -552,7 +553,7 @@ def payment_state(state: VisitorState):
         return {"messages": ["Payment failed due to an error. Please try again later."], "next": END}
 
 def final_state(state: VisitorState):
-    delay(5)
+    time.sleep(5)
     """FinalState: Send email confirmation and finalize the appointment."""
     if state.payment_confirmed:
         appointment_details = f"Doctor: {state.doctor_name}\nTime: {state.selected_slot}"