| listing/0 | Lists all predicates defined in the calling module. |
| listing/1 | List matching clauses. |
| listing/2 | List matching clauses. |
| portray_clause/1 | Portray‘Clause’on the current output stream. |
| portray_clause/2 | Portray‘Clause’on the current output stream. |
| portray_clause/3 | Portray‘Clause’on the current output stream. |