Chat::loadAction

public function loadAction(
	BitrixImV2Chat $chat,
	CurrentUser $user,
	int $messageLimit = ChatMessage::DEFAULT_LIMIT,
	int $pinLimit = Pin::DEFAULT_LIMIT
): ?array
{
	$result = $this->load($chat, $user, $messageLimit, $pinLimit);

	if (!empty($this->getErrors()))
	{
		return null;
	}

	return $result;
}