psalm.xml

<?xml version="1.0"?>
<psalm
    totallyTyped="true"
    resolveFromConfigFile="true"
    useDocblockTypes="true"
    requireVoidReturnType="true"
    allowPhpStormGenerics="true"
    ignoreInternalFunctionFalseReturn="false"
    ignoreInternalFunctionNullReturn="false"
    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" />
    </projectFiles>

    <issueHandlers>
        <MissingPropertyType errorLevel="suppress" />

        <LessSpecificReturnType errorLevel="error"/>

        <DeprecatedMethod errorLevel="error"/>
        <DeprecatedProperty errorLevel="error"/>
        <DeprecatedClass errorLevel="error"/>
        <DeprecatedConstant errorLevel="error"/>
        <DeprecatedInterface errorLevel="error"/>
        <DeprecatedTrait errorLevel="error"/>

        <ForbiddenCode errorLevel="suppress"/>

        <InternalMethod errorLevel="suppress"/>
        <InternalProperty errorLevel="error"/>
        <InternalClass errorLevel="error"/>

        <MissingClosureReturnType errorLevel="error"/>
        <MissingReturnType errorLevel="error"/>
        <MissingPropertyType errorLevel="error"/>
        <InvalidDocblock errorLevel="error"/>
        <MisplacedRequiredParam errorLevel="error"/>

        <PropertyNotSetInConstructor errorLevel="suppress"/>
        <MissingConstructor errorLevel="error"/>
        <MissingClosureParamType errorLevel="error"/>
        <MissingParamType errorLevel="error"/>
        <RedundantCondition errorLevel="error"/>
        <DocblockTypeContradiction errorLevel="error"/>
        <RedundantConditionGivenDocblockType errorLevel="error"/>
        <RawObjectIteration errorLevel="error"/>
        <InvalidStringClass errorLevel="error"/>

        <UnresolvableInclude errorLevel="suppress"/>
    </issueHandlers>
</psalm>