+extern char **guestfs_pvs (guestfs_h *handle);
+extern char **guestfs_vgs (guestfs_h *handle);
+extern char **guestfs_lvs (guestfs_h *handle);
+extern struct guestfs_lvm_pv_list *guestfs_pvs_full (guestfs_h *handle);
+extern struct guestfs_lvm_vg_list *guestfs_vgs_full (guestfs_h *handle);
+extern struct guestfs_lvm_lv_list *guestfs_lvs_full (guestfs_h *handle);
+extern char **guestfs_read_lines (guestfs_h *handle, const char *path);
+extern int guestfs_aug_init (guestfs_h *handle, const char *root, int flags);
+extern int guestfs_aug_close (guestfs_h *handle);
+extern int guestfs_aug_defvar (guestfs_h *handle, const char *name, const char *expr);
+extern struct guestfs_int_bool *guestfs_aug_defnode (guestfs_h *handle, const char *name, const char *expr, const char *val);
+extern char *guestfs_aug_get (guestfs_h *handle, const char *path);
+extern int guestfs_aug_set (guestfs_h *handle, const char *path, const char *val);
+extern int guestfs_aug_insert (guestfs_h *handle, const char *path, const char *label, int before);
+extern int guestfs_aug_rm (guestfs_h *handle, const char *path);
+extern int guestfs_aug_mv (guestfs_h *handle, const char *src, const char *dest);
+extern char **guestfs_aug_match (guestfs_h *handle, const char *path);
+extern int guestfs_aug_save (guestfs_h *handle);
+extern int guestfs_aug_load (guestfs_h *handle);