Network::checkMessageRestriction

static function checkMessageRestriction(array $messageFields): bool
{
	$bot = ImBot::getCache($messageFields['BOT_ID']);
	if (mb_substr($bot['CODE'], 0, 7) != self::BOT_CODE)
	{
		return false;
	}

	// Allow only this bot as recipient
	return $messageFields['TO_USER_ID'] == $messageFields['BOT_ID'];
}