Repo/Dao/Account.php
public function getSystemAccountIdByAssetCode($assetTypeCode)
    {
        $assetTypeId = $this->daoTypeAsset->getIdByCode($assetTypeCode);
        $result = $this->getSystemAccountId($assetTypeId);
        return $result;
    }
public function getSystemAccountIdByAssetCode($assetTypeCode)
    {
        $assetTypeId = $this->daoTypeAsset->getIdByCode($assetTypeCode);
        $result = $this->getSystemAccountId($assetTypeId);
        return $result;
    }
Return system account ID for given asset type. Create new account if there is no yet system
account for this asset type.

TODO: should we use this method or "\Praxigento\Accounting\Api\Service\Account\Get" service?

@param string $assetTypeCode
@return int|null
@throws \Exception