/**
  * Default constructor.
  *
  * @param kyCustomFieldGroupBase $custom_field_group Custom field group this field belongs to.
  * @param array $data Object data from XML response converted into array.
  */
 function __construct($custom_field_group, $data = null)
 {
     parent::__construct($data);
     $this->custom_field_group = $custom_field_group;
 }