|null $participants List of participants in chat. Returned only when single chat is requested. */ public function __construct( public int $chatId, public ChatType $type, public ChatStatus $status, public int $lastEventTime, public int $participantsCount, public bool $isPublic, public ?string $title, public ?Image $icon, public ?int $ownerId, public ?string $link, public ?string $description, public ?UserWithPhoto $dialogWithUser, public ?int $messagesCount, public ?string $chatMessageId, public ?Message $pinnedMessage, public ?array $participants, ) { } }