GeneralChat::get

static function get(): ?GeneralChat
{
	if (self::$wasSearched)
	{
		return self::$instance;
	}

	$chatId = static::getGeneralChatId();
	$chat = Chat::getInstance($chatId);
	self::$instance = ($chat instanceof NullChat) ? null : $chat;
	self::$wasSearched = true;

	return self::$instance;
}