use Gentle\Embeddable\Date;
use Vimishor\Cnp\Checksum;
use Vimishor\Cnp\Cnp;
use Vimishor\Cnp\County;
use Vimishor\Cnp\Gender;
use Vimishor\Cnp\Serial;

try {
    $cnp = Cnp::fromString('2791219470034');
} catch (\Vimishor\Cnp\Exception\InvalidCnpException $e) {
    // do something
}

// you can also instantiate everything yourself
try {
    $cnp = new Cnp(
        new Gender(2), Date::fromString('1979-12-19T19:10:23+00:00'), new County(47), new Serial(003), new Checksum(4)
    );
} catch (\Vimishor\Cnp\Exception\InvalidCnpException $e) {
    // do something
}