| (add-vertex! vertex graph ) |
| (add-vertices! lower_bound upper_bound graph ) |
| (add-edge! set <vertex *> graph ) |
| (add-edges! mset <set <vertex *>> graph ) |
| (add-edges! mset <sequence <vertex *>> graph ) |
| (remove-vertex! vertex graph ) |
| (remove-edge! edge graph ) |
| (remove-edges! <list of edges> graph ) |