How to use the labelme.logger.logger.info function in labelme

QtCore.QLocale.system().name(),
        osp.dirname(osp.abspath(__file__)) + '/translate'
    )
    app = QtWidgets.QApplication(sys.argv)
    app.setApplicationName(__appname__)
    app.setWindowIcon(newIcon('icon'))
    app.installTranslator(translator)
    win = MainWindow(
        config=config,
        filename=filename,
        output_file=output_file,
        output_dir=output_dir,
    )

    if reset_config:
        logger.info('Resetting Qt config: %s' % win.settings.fileName())
        win.settings.clear()
        sys.exit(0)

    win.show()
    win.raise_()
    sys.exit(app.exec_())

def main():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)
    parser.add_argument('label_png', help='label PNG file')
    args = parser.parse_args()

    lbl = np.asarray(PIL.Image.open(args.label_png))

    logger.info('label shape: {}'.format(lbl.shape))
    logger.info('unique label values: {}'.format(np.unique(lbl)))

    lbl_viz = utils.draw_label(lbl)
    plt.imshow(lbl_viz)
    plt.show()

def main():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)
    parser.add_argument('label_png', help='label PNG file')
    args = parser.parse_args()

    lbl = np.asarray(PIL.Image.open(args.label_png))

    logger.info('label shape: {}'.format(lbl.shape))
    logger.info('unique label values: {}'.format(np.unique(lbl)))

    lbl_viz = utils.draw_label(lbl)
    plt.imshow(lbl_viz)
    plt.show()

)

    PIL.Image.fromarray(img).save(osp.join(out_dir, 'img.png'))
    utils.lblsave(osp.join(out_dir, 'label.png'), lbl)
    PIL.Image.fromarray(lbl_viz).save(osp.join(out_dir, 'label_viz.png'))

    with open(osp.join(out_dir, 'label_names.txt'), 'w') as f:
        for lbl_name in label_names:
            f.write(lbl_name + '\n')

    logger.warning('info.yaml is being replaced by label_names.txt')
    info = dict(label_names=label_names)
    with open(osp.join(out_dir, 'info.yaml'), 'w') as f:
        yaml.safe_dump(info, f, default_flow_style=False)

    logger.info('Saved to: {}'.format(out_dir))

def deleteFile(self):
        mb = QtWidgets.QMessageBox
        msg = self.tr('You are about to permanently delete this label file, '
                      'proceed anyway?')
        answer = mb.warning(self, self.tr('Attention'), msg, mb.Yes | mb.No)
        if answer != mb.Yes:
            return

        label_file = self.getLabelFile()
        if osp.exists(label_file):
            os.remove(label_file)
            logger.info('Label file is removed: {}'.format(label_file))

            item = self.fileListWidget.currentItem()
            item.setCheckState(Qt.Unchecked)

            self.resetState()