livekits如何对接玩具主板，实现语音通话，简单代码发我

import asyncio
from livekit import api, rtc

LIVEKIT_URL = "wss://your-livekit-server.com"
API_KEY = "your-api-key"
API_SECRET = "your-api-secret"
ROOM_NAME = "toy-room"
PARTICIPANT_NAME = "toy-board"

async def main():
    # 生成访问token
    token = api.AccessToken(API_KEY, API_SECRET) \
        .with_identity(PARTICIPANT_NAME) \
        .with_name(PARTICIPANT_NAME) \
        .with_grants(api.VideoGrants(room_join=True, room=ROOM_NAME)) \
        .to_jwt()

    room = rtc.Room()
    await room.connect(LIVEKIT_URL, token)

    # 推送本地麦克风音频
    audio_source = rtc.AudioSource()
    track = rtc.LocalAudioTrack.create_audio_track("mic", audio_source)
    await room.local_participant.publish_track(track)
    # 实际需要循环从麦克风设备读取PCM数据并push进source
    # 这里省略具体设备读写，开发者需根据主板音频接口实现

    # 接收远端音频并自动播放
    @room.on("track_subscribed")
    def on_track_subscribed(track: rtc.RemoteAudioTrack):
        print(f"收到远端音频: {track.sid}")
        # 自动播放，需将track绑定到硬件扬声器输出
        # 多数SDK默认会自动输出到系统默认设备

    # 保持连接
    await asyncio.sleep(3600)

if __name__ == "__main__":
    asyncio.run(main())