Update app.py

app.py

@@ -129,17 +129,13 @@ compiled_graph = graph.compile()
 
 # 9) Define respond_to_input so that Gradio (and the Hugging Face submission) can call it
 def respond_to_input(user_input: str) -> str:
-    # Start with an empty state
-    initial_state: AgentState = {
-        "messages": [],
-        "tool_request": None,
-        "tool_result": None
-    }
-    # Use .run(initial_state, user_input) in v0.3.x
-    final_state = compiled_graph.invoke(initial_state, user_input)
-    # The “final” on END means agent_out has no more tool calls and finished reasoning
-    # We return the last assistant message from state["messages"]:
-    return final_state["messages"][-1].replace("ASSISTANT: ", "")
+    initial_state: AgentState = {"messages": [], "tool_request": None, "tool_result": None}
+    # ✔️ In v0.4.7 (and 0.3.x+), you must use .run():
+    final_state = compiled_graph.run(initial_state, user_input)
+    # Return the last assistant message
+    last = final_state["messages"][-1]
+    return last.replace("ASSISTANT: ", "")
+
 
 
 class BasicAgent: