From 588116ff4024c894228999f1a98c2e51d3560c24 Mon Sep 17 00:00:00 2001
From: Ivan Matantsev <ivmatan@microsoft.com>
Date: Mon, 11 Mar 2019 10:06:09 -0700
Subject: [PATCH 1/2] Keep hiding

---
 .../DataLoadSave/TransformerChain.cs             |  2 +-
 .../Model/ModelOperationsCatalog.cs              | 16 ----------------
 2 files changed, 1 insertion(+), 17 deletions(-)

diff --git a/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs b/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs
index 73235797e5..e5cab81baa 100644
--- a/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs
+++ b/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs
@@ -200,7 +200,7 @@ internal TransformerChain(IHostEnvironment env, ModelLoadContext ctx)
                 LastTransformer = null;
         }
 
-        public void SaveTo(IHostEnvironment env, Stream outputStream)
+        internal void SaveTo(IHostEnvironment env, Stream outputStream)
         {
             using (var ch = env.Start("Saving pipeline"))
             {
diff --git a/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs b/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs
index fcc0905bad..0443240e1d 100644
--- a/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs
+++ b/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs
@@ -53,21 +53,5 @@ internal ExplainabilityTransforms(ModelOperationsCatalog owner)
                 _env = owner._env;
             }
         }
-
-        /// <summary>
-        /// Create a prediction engine for one-time prediction.
-        /// </summary>
-        /// <typeparam name="TSrc">The class that defines the input data.</typeparam>
-        /// <typeparam name="TDst">The class that defines the output data.</typeparam>
-        /// <param name="transformer">The transformer to use for prediction.</param>
-        /// <param name="inputSchemaDefinition">Additional settings of the input schema.</param>
-        /// <param name="outputSchemaDefinition">Additional settings of the output schema.</param>
-        public PredictionEngine<TSrc, TDst> CreatePredictionEngine<TSrc, TDst>(ITransformer transformer,
-            SchemaDefinition inputSchemaDefinition = null, SchemaDefinition outputSchemaDefinition = null)
-            where TSrc : class
-            where TDst : class, new()
-        {
-            return new PredictionEngine<TSrc, TDst>(_env, transformer, false, inputSchemaDefinition, outputSchemaDefinition);
-        }
     }
 }

From 63df62a098ca5fa50a3c30752ec56447b6fdd6a4 Mon Sep 17 00:00:00 2001
From: Ivan Matantsev <ivmatan@microsoft.com>
Date: Mon, 11 Mar 2019 10:51:37 -0700
Subject: [PATCH 2/2] BestFriends!

---
 src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs b/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs
index e5cab81baa..a0d9577bfd 100644
--- a/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs
+++ b/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs
@@ -200,6 +200,7 @@ internal TransformerChain(IHostEnvironment env, ModelLoadContext ctx)
                 LastTransformer = null;
         }
 
+        [BestFriend]
         internal void SaveTo(IHostEnvironment env, Stream outputStream)
         {
             using (var ch = env.Start("Saving pipeline"))