use \SapiStudio\FileSystem\Handler as FileHandler;
$files = FileHandler::getFinder()->files()->in('localpath');
\SapiStudio\FileSystem\Handler::get($queryFile)
\SapiStudio\FileSystem\Handler::get($filename)
\SapiStudio\FileSystem\Handler::loadJson($filePath,true(if you want your data as array))
\SapiStudio\FileSystem\Handler::dumpFile($location,$text);
\SapiStudio\FileSystem\Handler::dumpJson($location,$array);