This document describes how event hooks work in the Flow extension.

== Events and parameters ==

This is a list of known events and parameters; please add to it if you're going
to add events to the Flow extension.

'FlowAddModules': Allows other extensions to add relevant modules.
$output: OutputPage object

'FlowTermsOfUseMessages': Allows other extensions to change the terms-of-use messages.
&$messages: array, map from internal name to array of parameters for MessageLocalizer::msg()
$context: MessageLocalizer object
$config: Config object