### valor version checks - [X] I have confirmed this bug exists on the latest version of valor. ### Reproducible Example ```python See sklearn's handling of single class data being passed to `roc_auc_score` ``` ### Issue Description The lite ROCAUC implementation is intended for multiclass data and should not be used with binary classification datasets. ### Expected Behavior We should raise a warning or not return ROCAUC if an invalid input is passed.
valor version checks
Reproducible Example
Issue Description
The lite ROCAUC implementation is intended for multiclass data and should not be used with binary classification datasets.
Expected Behavior
We should raise a warning or not return ROCAUC if an invalid input is passed.