Classes/Controller/ConfigurationController.php
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;
    }
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;
    }
Generates the module content.

@param array $row
@return void