'string', 'suggestions' => 'string[]'])] public function getFeedback(bool $isSoleMatch): array { return [ 'warning' => "Recent years are easy to guess", 'suggestions' => [ 'Avoid recent years', 'Avoid years that are associated with you', ] ]; } protected function getRawGuesses(): float { $yearSpace = abs($this->token - DateMatch::getReferenceYear()); return max($yearSpace, DateMatch::MIN_YEAR_SPACE); } }