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>
            <file name="src/DependencyInjection/Configuration.php"/>
        </ignoreFiles>
    </projectFiles>

    <issueHandlers>
        <UndefinedMagicPropertyFetch>
            <errorLevel type="suppress">
                <referencedProperty name="Contao\Widget::$type"/>
                <referencedProperty name="Contao\Widget::$formLayout"/>
                <referencedProperty name="Contao\Widget::$controlTemplate"/>
                <referencedProperty name="Contao\Widget::$controlClass"/>
                <referencedProperty name="Contao\Widget::$layoutTemplate"/>
                <referencedProperty name="Contao\Model::$form"/>
                <referencedProperty name="Contao\Model::$formLayout"/>
                <referencedProperty name="Contao\FormModel::$formLayout"/>
                <referencedProperty name="Contao\ContentModel::$formLayout"/>
                <referencedProperty name="Contao\ModuleModel::$formLayout"/>
                <referencedProperty name="Contao\DataContainer::$activeRecord"/>
            </errorLevel>
        </UndefinedMagicPropertyFetch>

        <InternalMethod>
            <errorLevel type="suppress">
                <referencedMethod name="Contao\CoreBundle\Framework\ContaoFramework::getAdapter"/>
            </errorLevel>
        </InternalMethod>
    </issueHandlers>
</psalm>