Implement KFold #46
Description
In the model_selection category, implement KFold.
https://scikit-learn.org/stable/modules/generated/sklearn.model_selection.KFold.html#sklearn.model_selection.KFold
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In the model_selection category, implement KFold.
https://scikit-learn.org/stable/modules/generated/sklearn.model_selection.KFold.html#sklearn.model_selection.KFold