namespace Microsoft.ML
{
    public sealed class RecommendationCatalog : TrainCatalogBase
    {
        public IReadOnlyList<CrossValidationResult<RegressionMetrics>> CrossValidate(IDataView data, IEstimator<ITransformer> estimator, int numberOfFolds = 5, string labelColumnName = "Label", string samplingKeyColumnName = null, int? seed = default);
    }
}