[Libguestfs] getting guestfs_rsync_out to work

All- Per this page https://rwmj.wordpress.com/2013/04/22/using-rsync-with-libguestfs/ We are trying to get the libguestfs API guestfs_rsync_out to work. We’ve tried combinations similar to: guestfs_rsync_out(g, “/HostShared”, “rsync://root@10.0.1.90:2999/backup/ -av”, -1) surrounding it with APIs as in the recipe examples, for example replacing libguestfs_cat(), with no luck. In the above example the "backup" rsync module name matches the script on Richard's wordpress.com blog page (above link). Typically in the rsync daemon log we see something like: receiving file list sent 17 bytes received 24 bytes total size 0 but no data is transferred. We are successful using rsync from the Linux command line, and we can get libguestfs APIs like guestfs_cat() to work fine. But we’ve had zero luck with rsync_out over the last week. Unfortunately there are no actual API examples online, no “recipes” on the libguestfs.org site, etc. Does anyone know where there are some actual libguestfs_rsync_out() working examples? Thanks. -Jeff