code: function(radio, options) {
          this.element = radio = $(radio);
          options = this.setOptions(options, radio);
          this.wrapper = this._buildWrapper();
  
          // Create custom input
          this.input = this.render(options.radioTemplate)
              .attr('for', radio.attr('id'))
              .insertAfter(radio);
  
          // Initialize events
          this.initialize();
      }
docs: Initialize the radio.
  
  @param {jQuery} radio
  @param {Object} [options]