struct oattr *obj_add_attr(struct odes *, uns, byte *);
struct oattr *obj_prepend_attr(struct odes *, uns, byte *);
struct oattr *obj_insert_attr(struct odes *o, struct oattr *first, struct oattr *after, byte *v);
struct oattr *obj_add_attr(struct odes *, uns, byte *);
struct oattr *obj_prepend_attr(struct odes *, uns, byte *);
struct oattr *obj_insert_attr(struct odes *o, struct oattr *first, struct oattr *after, byte *v);