Update app.py

app.py

@@ -34,7 +34,7 @@ def get_current_time_in_timezone(timezone: str) -> str:
         return f"Error fetching time for timezone '{timezone}': {str(e)}"
 
 @tool
-def get_weather_api(city : str) ->:
+def get_weather_api(city : str) -> str:
     """A tool that get the current weather. 
     Args: 
         city: A string that repesents a city name