public function deleteBackups($filePaths = [])
    {
        if (empty($filePaths)) {
            $allBackups = $this->getBackups();
            foreach ($allBackups as $backup) {
                $filePaths[] = $backup['filepath'];
            }
        }

        foreach ($filePaths as $filePath) {
            if (is_file($filePath)) {
                unlink($filePath);
            }
        }
        return $this;
    }