Podeng extend object

podeng-extend.js

const { blueprint, types, validator } = require('podeng');

const Car = blueprint.object({
  wheels: types.integer({ default: 4 }),
  color: types.options(['Red', 'Green', 'Blue']),
  brand: types.string
})

const Truck = blueprint.extend(Car, {
  wheels: types.integer({ default: 6 })
})

Truck({brand: 'Volvo'}) // this is ok, since we're not doing validation

const truckValidator = validator(Truck);

truckValidator.validate({brand: 123, color: 'Green'}) // throw error because have empty value for wheels