[MNT] Remove redundant __init__s in OpenMLTask descendants by adding ClassVar
#2783
| Job | Run time |
|---|---|
| 1m 31s | |
| 1m 31s |
__init__s in OpenMLTask descendants by adding ClassVar
#2783
| Job | Run time |
|---|---|
| 1m 31s | |
| 1m 31s |