Description: creating a rule with a Anonymous class does not allow custom error message. Any ideia how it can be done? Thanks ```php $v = (new v)->key('Address', (new class extends AbstractRule { public function validate($input): bool { return false; } })->setTemplate("{{name}} is not good!"), true); try { $v->assert(['Address' => "cvejvn"]); } catch (NestedValidationException $e) { var_dump($e->getFullMessage()); } ```` Output: ```php array(1) { ["Address"]=> string(21) "Address must be valid" } ````