Update app.py

app.py

@@ -36,7 +36,11 @@ def get_current_time_in_timezone(timezone: str) -> str:
 
 # Dummy function
 @tool
-def get_weather(location):
+def get_weather(location) -> str:
+    """A tool that gets the weather for a given city
+    Args:
+        location: A string representing a city 
+    """
     return f"the weather in {location} is sunny with low temperatures. \n"