init Session class

src/TensorFlowNET.Core/Session.cs

@@ -0,0 +1,10 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace TensorFlowNET.Core
+{
+    public class Session
+    {
+    }
+}

src/TensorFlowNET.Core/Status.cs

@@ -10,8 +10,14 @@ namespace TensorFlowNET.Core
         private IntPtr _handle;
         public IntPtr Handle => _handle;
 
-        public string ErrorMessage => c_api.TF_Message(_handle);
+        /// <summary>
+        /// Error message
+        /// </summary>
+        public string Message => c_api.TF_Message(_handle);
 
+        /// <summary>
+        /// Error code
+        /// </summary>
         public TF_Code Code => c_api.TF_GetCode(_handle);
 
         public Status()

src/TensorFlowNET.Core/Tensorflow.cs

@@ -51,5 +51,10 @@ namespace TensorFlowNET.Core
             Graph g = new Graph(c_api.TF_NewGraph());
             return g;
         }
+
+        public static Session Session()
+        {
+            return new Session();
+        }
     }
 }

test/TensorFlowNET.Examples/HelloWorld.cs

@@ -18,12 +18,10 @@ namespace TensorFlowNET.Examples
             
               The value returned by the constructor represents the output
               of the Constant op.*/
-            var graph = tf.get_default_graph();
-            var hello = tf.constant(4.0);
-            //var hello = tf.constant("Hello, TensorFlow!");
+            var hello = tf.constant("Hello, TensorFlow!");
 
             // Start tf session
-            // var sess = tf.Session();
+            var sess = tf.Session();
         }
     }
 }