psalm.xml

<?xml version="1.0"?>
<psalm
  errorLevel="3"
  hideExternalErrors="true"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns="https://getpsalm.org/schema/config"
  xsi:schemaLocation="https://getpsalm.org/schema/config https://getpsalm.org/schema/config"
>
  <projectFiles>
    <directory name="src"/>
    <ignoreFiles>
      <directory name="src/Resources/contao"/>
    </ignoreFiles>
  </projectFiles>

  <issueHandlers>
    <UndefinedThisPropertyFetch>
      <errorLevel type="suppress">
        <referencedProperty name="Hofff\Contao\RecursiveDownloadFolder\Frontend\Element\RecursiveDownloadFolderElement::$Template"/>
        <referencedProperty name="Hofff\Contao\RecursiveDownloadFolder\Frontend\Module\RecursiveDownloadFolderModule::$Template"/>
      </errorLevel>
    </UndefinedThisPropertyFetch>
  </issueHandlers>

  <universalObjectCrates>
    <class name="Contao\BackendTemplate"/>
    <class name="Contao\FrontendTemplate"/>
  </universalObjectCrates>
</psalm>