code: private function loadCustomersAccounts()
      {
          $mapAccs = $this->daoAcc->getAllByAssetTypeCode(Cfg::CODE_TYPE_ASSET_PV);
          $result = [];
          foreach ($mapAccs as $one) {
              $custId = $one->getCustomerId();
              $result[$custId] = $one;
          }
          return $result;
      }
docs: Load accounts by asset type code and map its using $customerId as a key.
  
  @return \Praxigento\Accounting\Repo\Data\Account[]