How to use the cgroupspy.contenttypes.DeviceThrottle function in cgroupspy

io_serviced_recursive = SplitValueFile("blkio.io_serviced_recursive", 1, int)
    io_service_time = SplitValueFile("blkio.io_service_time", 1, int)
    io_service_time_recursive = SplitValueFile("blkio.io_service_time_recursive", 1, int)
    io_wait_time = SplitValueFile("blkio.io_wait_time", 1, int)
    io_wait_time_recursive = SplitValueFile("blkio.io_wait_time_recursive", 1, int)
    leaf_weight = IntegerFile("blkio.leaf_weight")
    # TODO: Uncomment the following properties after researching how to interact with files
    # leaf_weight_device =
    reset_stats = IntegerFile("blkio.reset_stats")
    # sectors =
    # sectors_recursive =
    # throttle_io_service_bytes =
    # throttle_io_serviced =
    throttle_read_bps_device = TypedFile("blkio.throttle.read_bps_device", contenttype=DeviceThrottle, many=True)
    throttle_read_iops_device = TypedFile("blkio.throttle.read_iops_device", contenttype=DeviceThrottle, many=True)
    throttle_write_bps_device = TypedFile("blkio.throttle.write_bps_device ", contenttype=DeviceThrottle, many=True)
    throttle_write_iops_device = TypedFile("blkio.throttle.write_iops_device ", contenttype=DeviceThrottle, many=True)
    # time =
    # time_recursive =
    weight = IntegerFile("blkio.weight")
    # weight_device =


class NetClsController(Controller):

    """
    net_cls.classid
    """
    class_id = IntegerFile("net_cls.classid")


class NetPrioController(Controller):

io_service_bytes_recursive = SplitValueFile("blkio.io_service_bytes_recursive", 1, int)
    io_serviced = SplitValueFile("blkio.io_serviced", 1, int)
    io_serviced_recursive = SplitValueFile("blkio.io_serviced_recursive", 1, int)
    io_service_time = SplitValueFile("blkio.io_service_time", 1, int)
    io_service_time_recursive = SplitValueFile("blkio.io_service_time_recursive", 1, int)
    io_wait_time = SplitValueFile("blkio.io_wait_time", 1, int)
    io_wait_time_recursive = SplitValueFile("blkio.io_wait_time_recursive", 1, int)
    leaf_weight = IntegerFile("blkio.leaf_weight")
    # TODO: Uncomment the following properties after researching how to interact with files
    # leaf_weight_device =
    reset_stats = IntegerFile("blkio.reset_stats")
    # sectors =
    # sectors_recursive =
    # throttle_io_service_bytes =
    # throttle_io_serviced =
    throttle_read_bps_device = TypedFile("blkio.throttle.read_bps_device", contenttype=DeviceThrottle, many=True)
    throttle_read_iops_device = TypedFile("blkio.throttle.read_iops_device", contenttype=DeviceThrottle, many=True)
    throttle_write_bps_device = TypedFile("blkio.throttle.write_bps_device ", contenttype=DeviceThrottle, many=True)
    throttle_write_iops_device = TypedFile("blkio.throttle.write_iops_device ", contenttype=DeviceThrottle, many=True)
    # time =
    # time_recursive =
    weight = IntegerFile("blkio.weight")
    # weight_device =


class NetClsController(Controller):

    """
    net_cls.classid
    """
    class_id = IntegerFile("net_cls.classid")