https://doc.wikimedia.org/mediawiki-core/REL1_39/php/SpecialEditPage_8php_source.html
MediaWiki: includes/specials/SpecialEditPage.php Source File
mediawikiincludesspecialsphpsource
https://doc.wikimedia.org/mediawiki-core/master/php/classMediaWiki_1_1Specials_1_1SpecialEditPage.html
MediaWiki: MediaWiki\Specials\SpecialEditPage Class Reference
mediawikispecialsclassreference