psalm.xml

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

    <issueHandlers>
        <DeprecatedClass>
            <errorLevel type="suppress">
                <!-- We need a new major version to get rid of it -->
                <referencedClass name="Contao\RequestToken"/>
                <referencedClass name="Hofff\Contao\LanguageRelations\LanguageRelations"/>
            </errorLevel>
        </DeprecatedClass>
        <InternalMethod>
            <errorLevel type="suppress">
                <referencedMethod name="Contao\CoreBundle\Framework\Adapter::__call"/>
                <referencedMethod name="Contao\CoreBundle\Framework\ContaoFramework::getAdapter"/>
            </errorLevel>
        </InternalMethod>
    </issueHandlers>

    <universalObjectCrates>
        <class name="Contao\ArticleModel"/>
        <class name="Contao\Database\Result"/>
        <class name="Contao\Model"/>
        <class name="Contao\Template"/>
        <class name="Contao\BackendTemplate"/>
        <class name="Contao\Widget"/>
    </universalObjectCrates>
</psalm>