MediaWiki:Apihelp-query+imageusage-param-filterredir
From MoodleDocs
How to filter for redirects. If set to nonredirects when $1redirect is enabled, this is only applied to the second level.
Note: You are currently viewing documentation for Moodle 3.1. Up-to-date documentation for the latest stable version of Moodle is probably available here: Apihelp-query+imageusage-param-filterredir.