KFold.__init__() got an unexpected keyword argument 'n_folds'

The error message suggests that the `KFold` class does not have a parameter named `n_folds`.

Instead, `KFold` has a parameter named `n_splits`, which specifies the number of folds to create. Try changing `n_folds` to `n_splits` in your code and see if that resolves the issue.

For example:

from sklearn.model_selection import KFold

# Create a KFold object with 5 splits/folds
kf = KFold(n_splits=5, shuffle=True)