This function returns 0 on success or -1 on error.
+=head2 guestfs_ntfs_3g_probe
+
+ int guestfs_ntfs_3g_probe (guestfs_h *handle,
+ int rw,
+ const char *device);
+
+This command runs the L<ntfs-3g.probe(8)> command which probes
+an NTFS C<device> for mountability. (Not all NTFS volumes can
+be mounted read-write, and some cannot be mounted at all).
+
+C<rw> is a boolean flag. Set it to true if you want to test
+if the volume can be mounted read-write. Set it to false if
+you want to test if the volume can be mounted read-only.
+
+The return value is an integer which C<0> if the operation
+would succeed, or some non-zero value documented in the
+L<ntfs-3g.probe(8)> manual page.
+
+On error this function returns -1.
+
=head2 guestfs_ping_daemon
int guestfs_ping_daemon (guestfs_h *handle);
This function returns a string, or NULL on error.
I<The caller must free the returned string after use>.
+=head2 guestfs_sleep
+
+ int guestfs_sleep (guestfs_h *handle,
+ int secs);
+
+Sleep for C<secs> seconds.
+
+This function returns 0 on success or -1 on error.
+
=head2 guestfs_stat
struct guestfs_stat *guestfs_stat (guestfs_h *handle,