Merge branch '8232-april-2020-release' of github.com:watson-developer-cloud/dotnet-standard-sdk into 8232-april-2020-release

Author: mediumTaj

examples/IBM.Watson.Assistant.v2.Examples/ServiceExample.cs

@@ -18,6 +18,7 @@
 
 using IBM.Cloud.SDK.Core.Authentication.Iam;
 using IBM.Watson.Assistant.v2.Model;
+using System.Collections.Generic;
 using System;
 
 namespace IBM.Watson.Assistant.v2.Examples
@@ -106,12 +107,15 @@ public void MessageWithContext()
             IamAuthenticator authenticator = new IamAuthenticator(
                 apikey: "{apikey}");
 
-            AssistantService service = new AssistantService("2019-02-28", authenticator);
+            AssistantService service = new AssistantService("2020-04-01", authenticator);
             service.SetServiceUrl("{serviceUrl}");
 
             MessageContextSkills skills = new MessageContextSkills();
             MessageContextSkill skill = new MessageContextSkill();
-            skill.UserDefined.Add("account_number", "123456");
+            Dictionary<string, object> userDefinedDictionary = new Dictionary<string, object>();
+
+            userDefinedDictionary.Add("account_number", "123456");
+            skill.UserDefined = userDefinedDictionary;
             skills.Add("main skill", skill);
 
             var result = service.Message(