code: public function setFitToWidth($pValue, $pUpdate = true)
      {
          $this->fitToWidth = $pValue;
          if ($pUpdate) {
              $this->fitToPage = true;
          }
  
          return $this;
      }
docs: Set Fit To Width.
  
  @param null|int $pValue
  @param bool $pUpdate Update fitToPage so it applies rather than scaling
  
  @return PageSetup