psalm.xml

<?xml version="1.0"?>
<psalm
        errorLevel="3"
        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"
>
    <projectFiles>
        <directory name="src" />
        <ignoreFiles>
            <directory name="vendor" />
        </ignoreFiles>
    </projectFiles>

    <issueHandlers>
        <PossiblyNullReference>
            <errorLevel type="suppress">
                <file name="src/DependencyInjection/Configuration.php" />
            </errorLevel>
        </PossiblyNullReference>

        <PossiblyUndefinedMethod>
            <errorLevel type="suppress">
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::arrayNode" />
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::scalarNode" />
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::variableNode" />
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::booleanNode" />
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::integerNode" />
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::children" />
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::addDefaultsIfNotSet" />
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeParentInterface::end" />
            </errorLevel>
        </PossiblyUndefinedMethod>
    </issueHandlers>
</psalm>