import datetime def function_tool(func): func._is_tool = True return func @function_tool def get_weather(city: str) -> str: '''fetches weather information for a given city.''' return f"The weather in {city} is sunny with 75°F" @function_tool def get_time() -> str: '''fetches the current time.''' return f"The current time is {datetime.datetime.now().strftime('%H:%M:%S')}"