Apihelp-query+usercontribs-param-show
From LNTwww
Show only items that meet these criteria, e.g. non minor edits only: $2show=!minor</kbd>. If <kbd>$2show=patrolled or $2show=!patrolled</kbd> is set, revisions older than <var>[[mw:Special:MyLanguage/Manual:$wgRCMaxAge|$wgRCMaxAge]]</var> ($1 seconds) won't be shown.
