code: function(model, options) {
        if (!(model instanceof Parse.Object)) {
          var attrs = model;
          options.collection = this;
          model = new this.model(attrs, options);
          if (!model._validate(model.attributes, options)) {
            model = false;
          }
        } else if (!model.collection) {
          model.collection = this;
        }
        return model;
      }
docs: Prepare a model or hash of attributes to be added to this collection.