gistfile1.js

var myClass = new MooseClassFactory()
  .name('MyMooseClass') 
  .with(['SomeRandomRole', 'SomeOtherRole' ])
  .extends('MyOtherMooseClass')
  .has('foo', { is: 'ro', isa: 'Str', required: true })
  .has('bar', { is: 'rw', isa: 'Str', required: true, defaultValue: function() { return "foo " + " bar" } })
  .method('fweep', function() {
    say("fweeping up a storm!");
  })
  .makeImmutable;