Stream Vision Agents와 Amazon Nova 2 Sonic을 활용한 실시간 음성 에이전트 구축

async def create_agent(**kwargs) -> Agent:
    agent = Agent(
        edge=getstream.Edge(),
        agent_user=User(name="Helpful Assistant", id="agent"),
        instructions="You are a helpful voice assistant. Be concise and friendly.",
        llm=aws.Realtime(
            model="amazon.nova-2-sonic-v1:0",
            region_name="us-east-1",
            voice_id="matthew",
        ),
    )
    return agent

@agent.llm.register_function(
    name="get_weather",
    description="Get the current weather for a given city"
)
async def get_weather(location: str) -> Dict[str, Any]:
    # In production, call a real weather API
    return {
        "city": location,
        "temperature": 72,
        "condition": "Sunny",
        "humidity": "45%"
    }