Downloading File Service OVF

# Download compatible OVF from VMware server
   #Find OVF download url
   print("Finding OVF download url ...")
   ovfUrl = vcfs.FindOvfDownloadUrl(cluster)
   if not ovfUrl:
      print("Failed to find the OVF download url.")
      return -1
   print("Found OVF download url: %s" % ovfUrl)

   # Download FSVM OVF files to vCenter
   print("Downloading ovf files from %s to vCenter ..." % ovfUrl)
   vsanTask = vcfs.DownloadFileServiceOvf(downloadUrl=ovfUrl)
   vcTask = vsanapiutils.ConvertVsanTaskToVcTask(vsanTask, si._stub)
   vsanapiutils.WaitForTasks([vcTask], si)
   if vcTask.info.state != 'success':
      print("Failed to download ovf files with error: %s"
            % vcTask.infor.error)
      return -1
   print("Downloaded ovf files to vCenter successfully")