validationConstraints example

    public function parseToken(string $token): TokenStruct
    {
        try {
            /** @var UnencryptedToken $jwtToken */
            $jwtToken = $this->configuration->parser()->parse($token);
        } catch (\Throwable $e) {
            throw PaymentException::invalidToken($token, $e);
        }

        if (!$this->configuration->validator()->validate($jwtToken, ...$this->configuration->validationConstraints())) {
            throw PaymentException::invalidToken($token);
        }

        if (!$this->has($token)) {
            throw PaymentException::tokenInvalidated($token);
        }

        $errorUrl = $jwtToken->claims()->get('eul');

        /** @var \DateTimeImmutable $expires */
        $expires = $jwtToken->claims()->get('exp');