8 files declare their use of Generator in Simple XML sitemap 4.x

CustomLinksForm.php in src/Form/CustomLinksForm.php

FormHelper.php in src/Form/FormHelper.php

SettingsForm.php in src/Form/SettingsForm.php

SimpleSitemapCommands.php in src/Commands/SimpleSitemapCommands.php

SimpleSitemapController.php in src/Controller/SimpleSitemapController.php

SimpleSitemapFormBase.php in src/Form/SimpleSitemapFormBase.php

SitemapSubmitter.php in modules/simple_sitemap_engines/src/Plugin/QueueWorker/SitemapSubmitter.php

StatusForm.php in src/Form/StatusForm.php