code: protected function moduleContent(array $row)
      {
          $this->formResultCompiler = GeneralUtility::makeInstance(\TYPO3\CMS\Backend\Form\FormResultCompiler::class);
  
          $wizard = $this->formResultCompiler->addCssFiles();
          $wizard .= $this->buildForm($row);
          $wizard .= $this->formResultCompiler->printNeededJSFunctions();
  
          $this->content .= $wizard;
      }
docs: Generates the module content.
  
  @param array $row
  @return void