Update app.py

app.py

@@ -85,7 +85,7 @@ def get_weather_description(code):
     
 @tool
 def get_weather(city: str) -> str:
-    """A tool that fetches the current weather of a specified city.
+    """A tool that fetches the current weather of a specified city. Response must be translated to the language user used in request
     Args:
         city: A string representing a city
     """