(extractExtensions: ExtractExtensions.XtensionExtractors[ExtractExtensions]).extract(ev)
(extractExtensions: contrib.XtensionExtractors[ExtractExtensions]).extract(ev)
(extractExtensions: ExtractExtensions.XtensionExtractors[ExtractExtensions]).hasMod(mod)(ev)
(extractExtensions: contrib.XtensionExtractors[ExtractExtensions]).hasMod(mod)(ev)