2.2.13: "Cannot redeclare function" fatal error with php-standard-library/type package #15184

 -- -------------------------------------------------------------------------
     Error
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     Child process error (exit code 255): Fatal error: Cannot redeclare
     function Psl\Type\optional() (previously declared in
     .../vendor/php-standard-library/type/src/Psl/Type/optional.php:18) in
     .../vendor/php-standard-library/type/src/Psl/Type/optional.php on line 18
     Stack trace:
     #0 phar://.../phpstan.phar/vendor/composer/ClassLoader.php(427):
        {closure:Composer\Autoload\ClassLoader::initializeIncludeClosure():575}('...')
     #1 phar://.../src/Reflection/BetterReflection/SourceLocator/AutoloadSourceLocator.php(271):
        Composer\Autoload\ClassLoader->loadClass('Psl\Type\optional')
     #2 phar://.../src/Reflection/BetterReflection/SourceLocator/FileReadTrapStreamWrapper.php(69):
        AutoloadSourceLocator::{closure:...locateClassByName():264}()
     #3 phar://.../src/Reflection/BetterReflection/SourceLocator/AutoloadSourceLocator.php(264):
        FileReadTrapStreamWrapper::withStreamWrapperOverride(Object(Closure))
     ...
     #10 phar://.../src/Reflection/ReflectionProvider/MemoizingReflectionProvider.php(38):
        BetterReflectionProvider->hasClass('Psl\Type\optional')
     #11 phar://.../src/Reflection/ClassReflection.php(878):
        MemoizingReflectionProvider->hasClass('Psl\Type\optional')
     #12 [internal function]: ClassReflection->is('Psl\Type\optional')
     #13 phar://.../src/Analyser/MutatingScope.php(2056):
        PHPStanTurbo\ScopeOps::invalidateExpressionEntries(...)