a few updates

examples/foundational/07e-interruptible-together.py

@@ -55,21 +55,17 @@ async def run_bot(transport: BaseTransport, runner_args: RunnerArguments):
 
     stt = TogetherSTTService(api_key=os.getenv("TOGETHER_API_KEY"))
 
-    tts = TogetherTTSService(
+    tts = TogetherTTSService(api_key=os.getenv("TOGETHER_API_KEY"))
+
+    llm = TogetherLLMService(
         api_key=os.getenv("TOGETHER_API_KEY"),
-        voice="tara",
+        settings=TogetherLLMService.Settings(
+            model="Qwen/Qwen3.5-9B",
+            system_instruction="You are a helpful LLM in a WebRTC call. Your goal is to demonstrate your capabilities in a succinct way. Your output will be spoken aloud, so avoid special characters that can't easily be spoken, such as emojis or bullet points. Respond to what the user said in a creative and helpful way.",
+        ),
     )
 
-    llm = TogetherLLMService(api_key=os.getenv("TOGETHER_API_KEY"))
-
-    messages = [
-        {
-            "role": "system",
-            "content": "You are a helpful LLM in a WebRTC call. Your goal is to demonstrate your capabilities in a succinct way. Your output will be spoken aloud, so avoid special characters that can't easily be spoken, such as emojis or bullet points. Respond to what the user said in a creative and helpful way.",
-        },
-    ]
-
-    context = LLMContext(messages)
+    context = LLMContext()
     user_aggregator, assistant_aggregator = LLMContextAggregatorPair(
         context,
         user_params=LLMUserAggregatorParams(vad_analyzer=SileroVADAnalyzer()),
@@ -100,7 +96,7 @@ async def run_bot(transport: BaseTransport, runner_args: RunnerArguments):
     async def on_client_connected(transport, client):
         logger.info(f"Client connected")
         # Kick off the conversation.
-        messages.append({"role": "system", "content": "Please introduce yourself to the user."})
+        context.add_message({"role": "user", "content": "Please introduce yourself"})
         await task.queue_frames([LLMRunFrame()])
 
     @transport.event_handler("on_client_disconnected")