Update app.py

app.py

@@ -37,7 +37,7 @@ def get_current_time_in_timezone(timezone: str) -> str:
 def get_weather_forecast(city_name):
     """A tool that fetches the current weather of a specified city.
     Args:
-        city: A string representing a valid city (e.g., 'Bangalore').
+        city_name: A string representing a valid city (e.g., 'Bangalore').
     """
 
     latitude, longitude = get_coordinates_no_api_key(city_name)