BookInformationHook.php
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BookInformationHook.php
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	<?php

	namespace MediaWiki\Hook;

	use MediaWiki\Output\OutputPage;

	/**
	* This is a hook handler interface, see docs/Hooks.md.
	* Use the hook name "BookInformation" to register handlers implementing this interface.
	*
	* @stable to implement
	* @ingroup Hooks
	*/
	interface BookInformationHook {
	/**
	* This hook is called before information output on Special:Booksources.
	*
	* @since 1.35
	*
	* @param string $isbn ISBN to show information for
	* @param OutputPage $output OutputPage object in use
	* @return bool\|void True or no return value to continue or false to abort
	*/
	public function onBookInformation( $isbn, $output );
	}