How to use the inflected.transliterate function in inflected

Inflector.ordinal(1)      // => 'st'
Inflector.ordinal(2)      // => 'nd'
Inflector.ordinal(1002)   // => 'nd'
Inflector.ordinal(1003)   // => 'rd'
Inflector.ordinal(-11)    // => 'th'
Inflector.ordinal(-1021)  // => 'st'

Inflector.ordinalize(1)      // => '1st'
Inflector.ordinalize(2)      // => '2nd'
Inflector.ordinalize(1002)   // => '1002nd'
Inflector.ordinalize(1003)   // => '1003rd'
Inflector.ordinalize(-11)    // => '-11th'
Inflector.ordinalize(-1021)  // => '-1021st'

Inflector.transliterate('Ærøskøbing')  // => 'AEroskobing'

Inflector.parameterize('Donald E. Knuth')                      // => 'donald-e-knuth'
Inflector.parameterize('Donald E. Knuth', { separator: '+' })  // => 'donald+e+knuth'

module.exports.convertToSlug = function(string) {
  return inflector.parameterize(inflector.transliterate('' + (string || '')));
};

function convertToSlug(string) {
  var ret = inflector.parameterize(
    inflector.transliterate('' + (string || '')));
  if (ret === '') {
    return 'slug';
  }
  return ret;
}