text: module.exports = {
    // Specify a blacklist of disallowed units.
    'unit-blacklist': [],
    // Specify lowercase or uppercase for units.
    'unit-case': 'lower',
    // Disallow unknown units.
    'unit-no-unknown': true,
    // Specify a whitelist of allowed units.
    'unit-whitelist': null,
  };
  