How to use the make-plural-compiler/src/compiler function in make-plural-compiler

it('has autogenerated tests', function() {
    const mpc = new MakePlural(lc, opt)
    expect(() => mpc.compile()).to.not.throw()
    expect(mpc.tests[type]).to.not.be.empty
  })

it('should not validate bad functions', function() {
      var cldr = {
          supplemental: {
            'plurals-type-cardinal': {
              xx: {
                'pluralRule-count-one': 'n = 1 @integer 2',
                'pluralRule-count-other': ''
              }
            }
          }
        },
        prevRules = MakePlural.rules
      MakePlural.load(cldr)
      var mpc = new MakePlural('xx')
      var mp = mpc.compile()
      expect(mpc.test).to.throw(/self-test failed/)
      MakePlural.rules = prevRules
    })
  })

function testPluralData(type, lc, getPlural) {
  var opt = { cardinals: type == 'cardinal', ordinals: type == 'ordinal' }

  it('has autogenerated tests', function() {
    const mpc = new MakePlural(lc, opt)
    expect(() => mpc.compile()).to.not.throw()
    expect(mpc.tests[type]).to.not.be.empty
  })

  it('is included in the output', function() {
    expect(getPlural(lc)).to.be.an.instanceOf(Function)
  })

  var mpc = new MakePlural(lc, opt)
  var mp = mpc.compile()
  for (var cat in mpc.tests[type]) {
    describe(
      cat + ': ' + MakePlural.rules[type][lc]['pluralRule-count-' + cat],
      function() {
        ;(function(cat) {
          it('Live data', function() {
            var test = mpc.tests.testCat.bind(mpc.tests)
            expect(() => test(type, cat, mp)).to.not.throw()
          })
          it('Output', function() {
            var test = mpc.tests.testCat.bind(mpc.tests)
            expect(() => test(type, cat, getPlural(lc))).to.not.throw()
          })
        })(cat)
      }

it('should handle local options', function() {
      var mp = new MakePlural('en', { ordinals: true }).compile()
      expect(mp(2, true)).to.equal('two')
    })
    it('should handle global options', function() {

it('should validate default functions', function() {
      var mpc = new MakePlural('en', { ordinals: true })
      var mp = mpc.compile()
      expect(() => mpc.test()).not.to.throw()
    })
    it('should not validate bad functions', function() {

      var new_mp = lc => new MakePlural(lc)
      expect(new_mp).to.throw()