\f
/* Transformations. */
-void add_transformation (struct dataset *ds,
+void add_transformation (struct dataset *ds,
trns_proc_func *, trns_free_func *, void *);
-void add_transformation_with_finalizer (struct dataset *ds,
+void add_transformation_with_finalizer (struct dataset *ds,
trns_finalize_func *,
trns_proc_func *,
trns_free_func *, void *);