Backbone setTimeout callbacks

fetch.js

    fetch: function (options) {
      this.trigger('fetching');
      Backbone.Model.prototype.fetch.call(
        this,
        smb.wrap_callbacks(this, options)
      );
    },

wrap_callback.js

  wrap_callbacks: function (that, options) {
    var new_options = _.clone(options) || {};

    new_options.success = function (object, response) {
      if (options && typeof options.success === "function") {
        options.success.call(arguments);
      }

      if (response.pending) {
        object.trigger('partial');
        setTimeout(_.bind(object.refresh, object), 2000);
      }
      that.trigger('done');
    };

    new_options.error = function (object, response) {
      if (options && typeof options.error === "function") {
        options.error.call(arguments);
      }

      smb.flash_error(response);

      that.trigger('done');
    };

    return new_options;
  },