namespace Microsoft.ML.Probabilistic.Learners.Mappings
{
    public class NegativeDataGeneratorMapping<TInstanceSource, TInstance, TUser, TItem, TFeatureSource, TFeatureValues> : ICustomSerializable, IRatingRecommenderMapping<TInstanceSource, RatingInstance<TUser, TItem, byte>, TUser, TItem, int, TFeatureSource, TFeatureValues>, IRecommenderMapping<TInstanceSource, RatingInstance<TUser, TItem, byte>, TUser, TItem, TFeatureSource, TFeatureValues>, IStarRatingRecommenderMapping<TInstanceSource, RatingInstance<TUser, TItem, byte>, TUser, TItem, int, TFeatureSource, TFeatureValues>
    {
        public TFeatureValues GetItemFeatures(TFeatureSource featureSource, TItem item);
    }
}