Update app.py

app.py

@@ -10,12 +10,12 @@ from Gradio_UI import GradioUI
 
 # Below is an example of a tool that does nothing. Amaze us with your creativity !
 @tool
-def compare_weather(city1:str, city2:int)-> str: #it's import to specify the return type
-    #Keep this format for the description / args / args description but feel free to modify the tool
-    """Compares the weather in two cities using OpenWeather API. Returns temperature and description. 
+def compare_weather(city1: str, city2: str) -> str:
+    """Compares the weather in two cities using OpenWeather API.
+
     Args:
-        arg1: First city name London
-        arg2: Second city name New York
+        city1: The name of the first city (e.g., "London")
+        city2: The name of the second city (e.g., "New York")
     """
     try:
         api_key = os.getenv("OPENWEATHER_API_KEY")