Fix examples

examples/foundational/07z-interruptible-sarvam-http.py

@@ -73,7 +73,7 @@ async def run_bot(transport: BaseTransport, runner_args: RunnerArguments):
         )
 
         llm = SarvamLLMService(
-            api_key=os.getenv("OPENAI_API_KEY"),
+            api_key=os.getenv("SARVAM_API_KEY"),
             settings=SarvamLLMService.Settings(
                 system_instruction="You are a helpful assistant in a voice conversation. Your responses will be spoken aloud, so avoid emojis, bullet points, or other formatting that can't be spoken. Respond to what the user said in a creative, helpful, and brief way.",
             ),

examples/foundational/07z-interruptible-sarvam.py

@@ -67,7 +67,7 @@ async def run_bot(transport: BaseTransport, runner_args: RunnerArguments):
         ),
     )
     llm = SarvamLLMService(
-        api_key=os.getenv("OPENAI_API_KEY"),
+        api_key=os.getenv("SARVAM_API_KEY"),
         settings=SarvamLLMService.Settings(
             system_instruction="You are a helpful assistant in a voice conversation. Your responses will be spoken aloud, so avoid emojis, bullet points, or other formatting that can't be spoken. Respond to what the user said in a creative, helpful, and brief way.",
         ),

examples/foundational/14y-function-calling-sarvam.py

@@ -78,7 +78,7 @@ async def run_bot(transport: BaseTransport, runner_args: RunnerArguments):
         ),
     )
     llm = SarvamLLMService(
-        api_key=os.getenv("OPENAI_API_KEY"),
+        api_key=os.getenv("SARVAM_API_KEY"),
         settings=SarvamLLMService.Settings(
             system_instruction="You are a helpful assistant in a voice conversation. Your responses will be spoken aloud, so avoid emojis, bullet points, or other formatting that can't be spoken. Respond to what the user said in a creative, helpful, and brief way.",
         ),
@@ -153,6 +153,7 @@ 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.
+        context.add_message({"role": "user", "content": "Please introduce yourself to the user."})
         await task.queue_frames([LLMRunFrame()])
 
     @transport.event_handler("on_client_disconnected")