Update app.py

app.py

@@ -26,10 +26,10 @@ def get_calories(meal:str) -> Union[str, None]:
     Retrieves the calorie information for a given meal from the OpenFoodFacts API.
 
     Args:
-        meal (str): The name or description of the meal to search for.
+        meal: The argument that describes the name or description of the meal to search for.
 
     Returns:
-        Union[str, None]: The calorie information as a string in the format 'X kcal per 100g',
+        Union: The calorie information as a string in the format 'X kcal per 100g',
                           'No data found' if no information is available, or None if the request fails.
     """
     search_url = "https://world.openfoodfacts.org/cgi/search.pl"