psalm.xml

<?xml version="1.0"?>
<psalm
    resolveFromConfigFile="true"
    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"
    allowPhpStormGenerics="true"
>
    <projectFiles>
        <directory name="bin"/>
        <directory name="src"/>
        <directory name="tests"/>
    </projectFiles>

    <issueHandlers>
        <PossiblyInvalidFunctionCall>
            <errorLevel type="suppress">
                <!-- It is a hacky way to access private property of parent class -->
                <file name="src/Console/Command/ProcessCommand.php"/>
            </errorLevel>
        </PossiblyInvalidFunctionCall>

        <UndefinedThisPropertyFetch>
            <errorLevel type="suppress">
                <!-- It is a hacky way to access private property of parent class -->
                <file name="src/Console/Command/ProcessCommand.php"/>
            </errorLevel>
        </UndefinedThisPropertyFetch>

        <PossiblyUndefinedMethod>
            <errorLevel type="suppress">
                <!-- PSalm cant detect symfony/config methods -->
                <file name="src/Config/Configuration.php"/>
            </errorLevel>
        </PossiblyUndefinedMethod>
    </issueHandlers>
</psalm>