pterodactyl/panel

if (!function_exists('is_digit')) {
    /**
     * Deal with normal (and irritating) PHP behavior to determine if
     * a value is a non-float positive integer.
     *
     * @param mixed $value
     *
     * @return bool
     */
    function is_digit($value)
    {
        return is_bool($value) ? false : ctype_digit(strval($value));
    }
}
//

use Pterodactyl\Contracts\Repository\EggRepositoryInterface;

class EggRepository extends EloquentRepository implements EggRepositoryInterface
{
    //
    public function getWithCopyAttributes($value, string $column = 'id'): Egg
    {
        Assert::true((is_digit($value) || is_string($value)), 'First argument passed to getWithCopyAttributes must be an integer or string, received %s.');
    }
    //
}