--- /dev/null
+TYPEMAP
+char * T_PV
+const char * T_PV
+guestfs_h * O_OBJECT_guestfs_h
+
+INPUT
+O_OBJECT_guestfs_h
+ if (sv_isobject ($arg) && SvTYPE (SvRV ($arg)) == SVt_PVMG)
+ $var = ($type) SvIV ((SV *) SvRV ($arg));
+ else {
+ warn (\"${Package}::$func_name(): $var is not a blessed SV reference\");
+ XSRETURN_UNDEF;
+ }
+
+OUTPUT
+O_OBJECT_guestfs_h
+ sv_setref_pv ($arg, "Sys::Guestfs", (void *) $var);