psalm.xml

<?xml version="1.0"?>
<psalm
    errorLevel="1"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="https://getpsalm.org/schema/config"
    xsi:schemaLocation="https://getpsalm.org/schema/config ./vendor/vimeo/psalm/config.xsd"
    cacheDirectory="./build/cache/psalm/"
    errorBaseline="./psalm-baseline.xml"
>
    <projectFiles>
        <directory name="./src/"/>
        <directory name="./tests/"/>
        <ignoreFiles>
            <directory name="./vendor/"/>
        </ignoreFiles>
    </projectFiles>
    <issueHandlers>
        <MixedInferredReturnType>
            <errorLevel type="suppress">
                <directory name="./tests/"/>
            </errorLevel>
        </MixedInferredReturnType>
    </issueHandlers>
    <plugins>
        <pluginClass class="Psalm\PhpUnitPlugin\Plugin"/>
    </plugins>
</psalm>