public function getAll()
{
$checkpointDir = $this->locator->getCheckpointDir();
$content = $this->fsHelper->isDir($checkpointDir) ? $this->fsHelper->scandir($checkpointDir) : [];
$checkpoints = array_filter($content, function ($dir) {
return !in_array($dir, ['.', '..']);
});
return $checkpoints;
}