Running jsduck on the Wikispeech direcotry (using composer doc) results in the following warnings
Warning: /vagrant/mediawiki/extensions/Wikispeech/modules/ext.wikispeech.loader.js:3: Unnamed property Warning: /vagrant/mediawiki/extensions/Wikispeech/jsduck-categories.json Class 'global' not found in categories file Warning: /vagrant/mediawiki/extensions/Wikispeech/modules/ext.wikispeech.ui.js:97: Unknown type OO.ui.ButtonGroupWidget Warning: /vagrant/mediawiki/extensions/Wikispeech/modules/ext.wikispeech.ui.js:97: Unknown type OO.ui.ButtonWidget Warning: /vagrant/mediawiki/extensions/Wikispeech/modules/ext.wikispeech.ui.js:205: Unknown type OO.ui.ButtonGroupWidget Warning: /vagrant/mediawiki/extensions/Wikispeech/modules/ext.wikispeech.storage.js:170: Unknown type jQuery.Promise