Found these thanks to improved gobject-introspection GTK-Doc
comment block/annotation parser from:
https://bugzilla.gnome.org/show_bug.cgi?id=672254
https://bugzilla.gnome.org/show_bug.cgi?id=673385
*
* The return value must be freed using g_free().
*
*
* The return value must be freed using g_free().
*
- * Returns: (transfer full) (array zero-terminated=1 length=length)
- * (element-type guint8): a newly allocated string
+ * Returns: (transfer full) (array zero-terminated=1 length=length) (element-type guint8):
+ * a newly allocated string