def extract_ticker_agent():  
output_key = "ticker"  
print(f"Calling Gemini for {output_key}")  
return Agent(  
model=WORKER_MODEL,  
name=f"{output_key}_agent",  
generate_content_config=create_model_settings(),  
description="Finds ticker",  
instruction=f"""  
From the user query, extract the stock market symbol that the user wants a report on.  
<example>  
User: Please write a report on Microsoft  
AI: MSFT  
</example>  
<example>  
User: Analyze WW  
AI: WW  
</example>  
<example>  
User: Nvidia  
AI: NVDA  
</example>  
""",  
output_key=output_key, # result will be in state[output_key]  
)