Update app.py

app.py

@@ -10,9 +10,15 @@ from bs4 import BeautifulSoup
 
 # Define a function to extract image URLs from DuckDuckGo search
 @tool
-def search_images_for_presentation(query: str):
-    """
+def search_images_for_presentation(query: str) -> list:
+     """
     Searches for images related to the given query on DuckDuckGo and returns a list of image URLs.
+
+    Args:
+        query (str): The search term to find relevant images.
+
+    Returns:
+        list: A list of image URLs.
     """
     helium.go_to("https://duckduckgo.com/")
     search_box = helium.find(S("input[type='text']"))