namespace Microsoft.ML
{
    public static class TreeExtensions
    {
        public static FastTreeRankingTrainer FastTree(this RankingTrainers catalog, string labelColumnName = "Label", string featureColumnName = "Features", string rowGroupColumnName = "GroupId", string exampleWeightColumnName = null, int numberOfLeaves = 20, int numberOfTrees = 100, int minimumExampleCountPerLeaf = 10, double learningRate = 0.2);
    }
}