nullable

Author: Jicheng Lu

src/Infrastructure/BotSharp.Abstraction/Agents/Models/AgentUtility.cs

@@ -26,7 +26,8 @@ public override string ToString()
 public class UtilityItem
 {
     [JsonPropertyName("function_name")]
-    public string FunctionName { get; set; } = string.Empty;
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? FunctionName { get; set; }
 
     [JsonPropertyName("template_name")]
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
@@ -35,35 +36,4 @@ public class UtilityItem
     [JsonPropertyName("visibility_expression")]
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
     public string? VisibilityExpression { get; set; }
-}
-
-//public class UtilityFunction : UtilityBase
-//{
-//    public UtilityFunction()
-//    {
-        
-//    }
-
-//    public UtilityFunction(string name)
-//    {
-//        Name = name;
-//    }
-//}
-
-//public class UtilityTemplate : UtilityBase
-//{
-//    public UtilityTemplate()
-//    {
-        
-//    }
-
-//    public UtilityTemplate(string name)
-//    {
-//        Name = name;
-//    }
-//}
-
-//public class UtilityBase
-//{
-//    public string Name { get; set; }
-//}
+}

src/Plugins/BotSharp.Plugin.MongoStorage/Models/AgentUtilityMongoElement.cs

@@ -48,7 +48,7 @@ public static AgentUtility ToDomainElement(AgentUtilityMongoElement utility)
 
 public class AgentUtilityItemMongoElement
 {
-    public string FunctionName { get; set; } = string.Empty;
+    public string? FunctionName { get; set; }
     public string? TemplateName { get; set; }
     public string? VisibilityExpression { get; set; }
 }

src/Plugins/BotSharp.Plugin.Twilio/OutboundPhoneCallHandler/Functions/OutboundPhoneCallFn.cs

@@ -1,5 +1,4 @@
 using BotSharp.Abstraction.Files;
-using BotSharp.Abstraction.Files.Models;
 using BotSharp.Abstraction.Infrastructures.Enums;
 using BotSharp.Abstraction.Options;
 using BotSharp.Abstraction.Routing;