Filter log actions to only this action. Overrides <var>$1type</var>. In the list of possible values, values with the asterisk wildcard such as <kbd>action/*</kbd> can have different strings after the slash (/).
Only list these page properties (<kbd>[[Special:ApiHelp/query+pagepropnames|action=query&list=pagepropnames]]</kbd> returns page property names in use). Useful for checking whether pages use a certain page property.
Page property for which to enumerate pages (<kbd>[[Special:ApiHelp/query+pagepropnames|action=query&list=pagepropnames]]</kbd> returns page property names in use).