Constraint configuration.
| KEY | TYPE | Description |
|---|---|---|
| penalty | float | The penalty for violating the constraint. |
| operator | str | The operator for the constraint. Could be 'EQ', 'LE', 'GE' |
| constant | float | The constant value for the constraint. |
| enforcement | str | The enforcement for the constraint. Could be 'HARD' or 'SOFT' or 'SKIP'. Default is 'HARD' |
| code | str | The code for the constraint. |