- validate_re($setting_type, ['\Aconf\z', '\Apref\z', '\Alist\z'], "apt::setting resource name/title must start with either 'conf-', 'pref-' or 'list-'")
+ assert_type(Pattern[/\Aconf\z/, /\Apref\z/, /\Alist\z/], $setting_type) |$a, $b| {
+ fail("apt::setting resource name/title must start with either 'conf-', 'pref-' or 'list-'")
+ }