Update app.py

app.py

@@ -9,7 +9,12 @@ from Gradio_UI import GradioUI
 
 @tool
 def random_fact(_: str) -> str:
-    """Returns a random hardcoded fact."""
+    """
+    Returns a random hardcoded fact.
+
+    Args:
+        _: Dummy argument, not used.
+    """
     return "Octopuses have three hearts."
 
 @tool