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="vendor/contao/core-bundle/src/Resources/contao"/>
        </ignoreFiles>
    </projectFiles>

    <issueHandlers>
        <InternalMethod>
            <errorLevel type="suppress">
                <referencedMethod name="Contao\CoreBundle\Framework\ContaoFramework::getAdapter"/>
                <referencedMethod name="Contao\CoreBundle\Framework\ContaoFramework::initialize"/>
            </errorLevel>
        </InternalMethod>
        <DeprecatedMethod>
            <errorLevel type="suppress">
                <referencedMethod name="Doctrine\DBAL\Connection::getSchemaManager"/>
                <referencedMethod name="Doctrine\DBAL\Query\QueryBuilder::execute"/>
            </errorLevel>
        </DeprecatedMethod>
    </issueHandlers>
</psalm>