namespace Microsoft.ML.Probabilistic.Learners.Mappings
{
    public interface IRatingRecommenderMapping<in TInstanceSource, TInstance, TUser, TItem, out TRating, in TFeatureSource, out TFeatureValues> : IRecommenderMapping<TInstanceSource, TInstance, TUser, TItem, TFeatureSource, TFeatureValues>
    {
        TRating GetRating(TInstanceSource instanceSource, TInstance instance);
    }
}