<?php

regex                     // the regex pattern to match against the URL
query                     // the wp_query arguments
template                  // the template file to load for this rewrite, full path or relative to active theme
request_callback          // callback called when the url is matched, useful for adding complex wp_query arguments
disable_canonical         // if set to true, will disable the often pesky canonical redirect that can erosion sly run on complex queries
post_query_properties     // list of properties to add / overwrite on the WP_Query object, useful for setting is_my_custom_page=1 style properties.
title_callback            // called via the wp_title hook to easily set the page title
restrict_access           // can be set to "logged_in_only" etc for private pages.