cannot search price with YFinanceTools and Gemini

[tli9181991]

from phi.agent import Agent
from phi.model.google import Gemini
from phi.tools.yfinance import YFinanceTools

agent = Agent(
    model=Gemini(id="gemini-1.5-flash", api_key=GOOGLE_API_KEY),
    tools=[YFinanceTools(stock_price=True)],
    show_tool_calls=True,
    markdown=True,
)

agent.print_response("What is the stock price of NVDA and TSLA", stream=True)

I just write your example for price search with gemini-1.5-flash. The response is

"The available tools lack the implementation to fetch stock prices. Therefore, I cannot answer your question."

after I switched to use stock_fundamentals=True with same question asking, the get_current_stock_price is run properly. Is there any problem when implementing with gemini? They program can still be usd by leaving stock_price to be default.

phidata version 2.7.8
python version 3.11
platform colab