code: public function getRowDimension($pRow, $create = true)
      {
          // Found
          $found = null;
  
          // Get row dimension
          if (!isset($this->rowDimensions[$pRow])) {
              if (!$create) {
                  return null;
              }
              $this->rowDimensions[$pRow] = new RowDimension($pRow);
  
              $this->cachedHighestRow = max($this->cachedHighestRow, $pRow);
          }
  
          return $this->rowDimensions[$pRow];
      }
docs: Get row dimension at a specific row.
  
  @param int $pRow Numeric index of the row
  @param bool $create
  
  @return RowDimension