OpenLineManager::getLineConnectorType

static function getLineConnectorType(?string $code): ?string
{
	if (!isset($code))
	{
		return null;
	}

	$connectorId = Chat::parseLinesChatEntityId($code)['connectorId'] ?? '';
	if (!in_array($connectorId, static::$supportedConnectors, true))
	{
		return null;
	}

	return $connectorId;
}