plugins/views_plugin_display_extender.inc

<?php
class views_plugin_display_extender extends views_plugin {
  function __construct(&$view, &$display) {
    $this->view = $view;
    $this->display = $display;
  }


  function options_definition(&$options) { }

  function options_form(&$form, &$form_state) { }

  function options_validate(&$form, &$form_state) { }

  function options_submit(&$form, &$form_state) { }

  function pre_execute() { }

  function query() { }

  function options_summary(&$categories, &$options) { }

  function defaultable_sections(&$sections, $section = NULL) { }
}