| 
                                                                        Good job, 2 issues
                            were                            fixed.
                                                             | |||
| 4 added classes/operations | |||
|   | A | S_::__invoke() added | |
|   | A | S2::__invoke() added | |
|   | A | S_ added | |
|   | A | S2 added | |
| Head |  | 
|---|---|
| ⋮ | 1 more commit | 
| Base |  |