corrected invalid syntax preventing run

01_ai_agents_first/16_advanced_handoffs/handsoff_masterclass/01_handoff_obj.py

@@ -1,6 +1,6 @@
 import os
 from dotenv import load_dotenv, find_dotenv
-from agents import Agent, Runner, AsyncOpenAI, OpenAIChatCompletionsModel, function_tool, handoff
+from agents import Agent, Runner, AsyncOpenAI, OpenAIChatCompletionsModel, function_tool, handoff, RunContextWrapper
 
 _: bool = load_dotenv(find_dotenv())
 
@@ -26,6 +26,9 @@ def get_weather(city: str) -> str:
     """A simple function to get the weather for a user."""
     return f"The weather for {city} is sunny."
 
+# Function to call when the handoff is invoked
+def news_agent_handoff(ctx: RunContextWrapper[None]):
+    print(f"\nHanding off to NewsAgent...\n")
 
 news_agent: Agent = Agent(
     name="NewsAgent",
@@ -39,11 +42,12 @@ def get_weather(city: str) -> str:
     instructions="You are weather expert - share weather updates as I travel a lot. For all Tech and News let the NewsAgent handle that part by delegation.",
     model=llm_model,
     tools=[get_weather],
-    handoffs=[handoff(agent=news_agent, on_handoff=)]
+    handoffs=[handoff(agent=news_agent, on_handoff=news_agent_handoff)] # Added callback function in on_hadoff parameter 
 )
 
 res = Runner.run_sync(weather_agent, "Check if there's any news about OpenAI after GPT-5 launch?")
 print("\nAGENT NAME", res.last_agent.name)
 print("\n[RESPONSE:]", res.final_output)
 
-# Now check the trace in 
+# Now check the trace in 
+# https://platform.openai.com/traces