optionsdto.php

См. документацию.

<?php
 
namespace Bitrix\Calendar\Core\EventOption;
 
use Bitrix\Main\Type\Contract\Arrayable;
 
final class OptionsDto implements Arrayable, \JsonSerializable
{
    public function __construct(public readonly int $maxAttendees = 0)
    {
    }
 
    public static function fromArray(array $params): self
    {
        return new self($params['max_attendees'] ?? 0);
    }
 
    public function toArray(): array
    {
        return [
            'max_attendees' => $this->maxAttendees,
        ];
    }
 
    public function jsonSerialize(): array
    {
        return $this->toArray();
    }
}