Fix/aws realtime tooluse barge in (livekit#3704)

Co-authored-by: Jarrett Kachenmeister <[email protected]>

Author: 2 people

examples/voice_agents/realtime_joke_teller.py

@@ -139,7 +139,8 @@ async def tell_joke(category: list[str] | None = None) -> dict[str, Any]:
             Available categories are: Any, Misc, Programming, Dark, Pun, Spooky, Christmas
     """
     j = await Jokes()
-    joke = await j.get_joke(category=category if category is not None else ["Any"])
+    # Use safe_mode=True to ensure jokes are appropriate for all ages
+    joke = await j.get_joke(category=category if category is not None else ["Pun"], safe_mode=True)
     if joke["type"] == "single":
         return {"joke": joke["joke"]}
     else: