有人用过backbone-validation.js这个插件吗？

Question

var SomeModel = Backbone.Model.extend({

  validation: {

    email: {

      required: true,

      pattern: 'email',

      msg: 'Please enter a valid email'

    }

  },

  validate: function(attr){

    console.log(attr);

  }

});

var some = new SomeModel();

some.set('email', 'test', {validate: true});

console.log(some);

能帮忙写个例子出来吗？我按照说明写了个测试，不知道怎么取到错误信息呢？