How to use the brainflow.board_shim.BoardShim.enable_dev_board_logger function in brainflow

parser.add_argument ('--board-id', type = int, help  = 'board id, check docs to get a list of supported boards', required = True)
    parser.add_argument ('--log', action = 'store_true')
    args = parser.parse_args ()

    params = BrainFlowInputParams ()
    params.ip_port = args.ip_port
    params.serial_port = args.serial_port
    params.mac_address = args.mac_address
    params.other_info = args.other_info
    params.ip_address = args.ip_address
    params.ip_protocol = args.ip_protocol

    synth_params = BrainFlowInputParams ()

    if (args.log):
        BoardShim.enable_dev_board_logger ()
    else:
        BoardShim.disable_board_logger ()

    board = BoardShim (args.board_id, params)
    synth_board = BoardShim (brainflow.board_shim.BoardIds.SYNTHETIC_BOARD.value, synth_params)
    board.prepare_session ()
    synth_board.prepare_session ()

    board.start_stream ()
    synth_board.start_stream ()
    time.sleep (10)
    data = board.get_board_data ()
    synth_data = synth_board.get_board_data ()
    board.stop_stream ()
    synth_board.stop_stream ()
    board.release_session ()

parser.add_argument ('--other-info', type = str, help  = 'other info', required = False, default = '')
    parser.add_argument ('--streamer-params', type = str, help  = 'other info', required = False, default = '')
    parser.add_argument ('--board-id', type = int, help  = 'board id, check docs to get a list of supported boards', required = True)
    parser.add_argument ('--log', action = 'store_true')
    args = parser.parse_args ()

    params = BrainFlowInputParams ()
    params.ip_port = args.ip_port
    params.serial_port = args.serial_port
    params.mac_address = args.mac_address
    params.other_info = args.other_info
    params.ip_address = args.ip_address
    params.ip_protocol = args.ip_protocol

    if (args.log):
        BoardShim.enable_dev_board_logger ()
    else:
        BoardShim.disable_board_logger ()

    board = BoardShim (args.board_id, params)
    board.prepare_session ()

    board.start_stream ()
    time.sleep (5)
    board.config_board ('/2') # enable analog mode only for Cyton Based Boards!
    time.sleep (5)
    data = board.get_board_data ()
    board.stop_stream ()
    board.release_session ()

    """
    data[BoardShim.get_other_channels(args.board_id)[0]] contains cyton end byte

def main ():
    BoardShim.enable_dev_board_logger ()

    # use synthetic board for demo
    params = BrainFlowInputParams ()
    board_id = BoardIds.SYNTHETIC_BOARD.value
    board = BoardShim (board_id, params)
    board.prepare_session ()
    board.start_stream ()
    BoardShim.log_message (LogLevels.LEVEL_INFO.value, 'start sleeping in the main thread')
    time.sleep (10)
    data = board.get_board_data ()
    board.stop_stream ()
    board.release_session ()

    eeg_channels = BoardShim.get_eeg_channels (board_id)
    # demo for transforms
    for count, channel in enumerate (eeg_channels):

parser.add_argument ('--mac-address', type = str, help  = 'mac address', required = False, default = '')
    parser.add_argument ('--other-info', type = str, help  = 'other info', required = False, default = '')
    parser.add_argument ('--board-id', type = int, help  = 'board id, check docs to get a list of supported boards', required = True)
    parser.add_argument ('--log', action = 'store_true')
    args = parser.parse_args ()

    params = BrainFlowInputParams ()
    params.ip_port = args.ip_port
    params.serial_port = args.serial_port
    params.mac_address = args.mac_address
    params.other_info = args.other_info
    params.ip_address = args.ip_address
    params.ip_protocol = args.ip_protocol

    if (args.log):
        BoardShim.enable_dev_board_logger ()
    else:
        BoardShim.disable_board_logger ()

    # demo how to read data as 2d numpy array
    board = BoardShim (args.board_id, params)
    board.prepare_session ()
    board.start_stream ()
    BoardShim.log_message (LogLevels.LEVEL_INFO.value, 'start sleeping in the main thread')
    time.sleep (10)
    # data = board.get_current_board_data (256) # get latest 256 packages or less, doesnt remove them from internal buffer
    data = board.get_board_data () # get all data and remove it from internal buffer
    board.stop_stream ()
    board.release_session ()

    # demo how to convert it to pandas DF and plot data
    eeg_channels = BoardShim.get_eeg_channels (args.board_id)

def main():
    BoardShim.enable_dev_board_logger ()
    # use synthetic board for demo
    params = BrainFlowInputParams ()
    board = BoardShim (BoardIds.SYNTHETIC_BOARD.value, params)
    board.prepare_session ()
    board.start_stream ()
    time.sleep (10)
    data = board.get_board_data ()
    board.stop_stream ()
    board.release_session ()

    eeg_channels = BoardShim.get_eeg_channels (BoardIds.SYNTHETIC_BOARD.value)
    eeg_data = data[eeg_channels, :]
    eeg_data = eeg_data / 1000000 # BrainFlow returns uV, convert to V for MNE

    # Creating MNE objects from brainflow data arrays
    ch_types = ['eeg', 'eeg', 'eeg', 'eeg', 'eeg', 'eeg', 'eeg', 'eeg']