code: private function lookUp(array $articleConstant): array
      {
          $copyListAttributes = $this->listAttributes;
  
          return array_map(function ($singleConst) use ($copyListAttributes) {
              $res = $copyListAttributes[$singleConst];
              return array_map(function ($str) use ($singleConst) {
                  return $singleConst . $str;
              }, $res);
          }, $articleConstant);
      }
docs: Create list attributes based on Article attachment type