Update app.py

app.py

@@ -39,6 +39,18 @@ def random_fact() -> str:
     ]
     return random.choice(facts)
 
+
+@tool
+def tell_joke()-> str:
+    """Returns a random joke."""
+    jokes = [
+        "Why don't skeletons fight each other? They don't have the guts.",
+        "I told my wife she was drawing her eyebrows too high. She looked surprised.",
+        "Why don’t scientists trust atoms? Because they make up everything!"
+    ]
+    return random.choice(jokes)
+
+
 @tool
 def get_current_time_in_timezone(timezone: str) -> str:
     """A tool that fetches the current local time in a specified timezone.