psalm.xml

<?xml version="1.0"?>
<psalm xmlns="https://getpsalm.org/schema/config"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
       reportMixedIssues="true"
       cacheDirectory="./build/cache/psalm"
       errorBaseline="./psalm-baseline.xml">

    <projectFiles>
        <directory name="./src"/>
        <ignoreFiles>
            <directory name="./tests"/>
            <directory name="./vendor"/>
        </ignoreFiles>
    </projectFiles>

    <issueHandlers>
        <MixedReturnStatement>
            <errorLevel type="suppress">
                <file name="./generator/TopLevelDomain.php" />  <!-- all InvalidReturnType issues in this file are suppressed -->
            </errorLevel>
        </MixedReturnStatement>
        <MixedInferredReturnType>
            <errorLevel type="suppress">
                <file name="./generator/TopLevelDomain.php" />
            </errorLevel>
        </MixedInferredReturnType>
    </issueHandlers>

</psalm>