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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 async def soundfield(dev: Device, soundfield: str):
 """Get or set sound field."""

    if soundfield is not None:
        await dev.set_sound_settings("soundField", soundfield)
    soundfields = await dev.get_sound_settings("soundField")
    print_settings(soundfields)