diff --git a/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/IPrediction.cs b/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/IPrediction.cs
index fdf67142ddebf..2210ef103283e 100644
--- a/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/IPrediction.cs
+++ b/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/IPrediction.cs
@@ -45,7 +45,7 @@ public partial interface IPrediction
         /// Enable spell checking.
         /// </param>
         /// <param name='bingSpellCheckSubscriptionKey'>
-        /// The subscription key to use when enabling bing spell check
+        /// The subscription key to use when enabling Bing spell check
         /// </param>
         /// <param name='log'>
         /// Log query (default is true)
@@ -65,6 +65,6 @@ public partial interface IPrediction
         /// <exception cref="Microsoft.Rest.ValidationException">
         /// Thrown when a required parameter is null
         /// </exception>
-        Task<HttpOperationResponse<LuisResult>> ResolveWithHttpMessagesAsync(string appId, string query, double? timezoneOffset = default(double?), bool? verbose = default(bool?), bool? staging = default(bool?), bool? spellCheck = default(bool?), string bingSpellCheckSubscriptionKey = default(string), bool? log = default(bool?), Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken));
+        Task<HttpOperationResponse<LuisResult>> ResolveWithHttpMessagesAsync(System.Guid appId, string query, double? timezoneOffset = default(double?), bool? verbose = default(bool?), bool? staging = default(bool?), bool? spellCheck = default(bool?), string bingSpellCheckSubscriptionKey = default(string), bool? log = default(bool?), Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken));
     }
 }
diff --git a/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/Prediction.cs b/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/Prediction.cs
index ea64dcdf7d2ea..93195fa685bd2 100644
--- a/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/Prediction.cs
+++ b/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/Prediction.cs
@@ -73,7 +73,7 @@ public Prediction(LUISRuntimeClient client)
         /// Enable spell checking.
         /// </param>
         /// <param name='bingSpellCheckSubscriptionKey'>
-        /// The subscription key to use when enabling bing spell check
+        /// The subscription key to use when enabling Bing spell check
         /// </param>
         /// <param name='log'>
         /// Log query (default is true)
@@ -99,16 +99,12 @@ public Prediction(LUISRuntimeClient client)
         /// <return>
         /// A response object containing the response body and response headers.
         /// </return>
-        public async Task<HttpOperationResponse<LuisResult>> ResolveWithHttpMessagesAsync(string appId, string query, double? timezoneOffset = default(double?), bool? verbose = default(bool?), bool? staging = default(bool?), bool? spellCheck = default(bool?), string bingSpellCheckSubscriptionKey = default(string), bool? log = default(bool?), Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
+        public async Task<HttpOperationResponse<LuisResult>> ResolveWithHttpMessagesAsync(System.Guid appId, string query, double? timezoneOffset = default(double?), bool? verbose = default(bool?), bool? staging = default(bool?), bool? spellCheck = default(bool?), string bingSpellCheckSubscriptionKey = default(string), bool? log = default(bool?), Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
         {
             if (Client.Endpoint == null)
             {
                 throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.Endpoint");
             }
-            if (appId == null)
-            {
-                throw new ValidationException(ValidationRules.CannotBeNull, "appId");
-            }
             if (query == null)
             {
                 throw new ValidationException(ValidationRules.CannotBeNull, "query");
@@ -142,7 +138,7 @@ public Prediction(LUISRuntimeClient client)
             var _baseUrl = Client.BaseUri;
             var _url = _baseUrl + (_baseUrl.EndsWith("/") ? "" : "/") + "apps/{appId}";
             _url = _url.Replace("{Endpoint}", Client.Endpoint);
-            _url = _url.Replace("{appId}", System.Uri.EscapeDataString(appId));
+            _url = _url.Replace("{appId}", System.Uri.EscapeDataString(Rest.Serialization.SafeJsonConvert.SerializeObject(appId, Client.SerializationSettings).Trim('"')));
             List<string> _queryParameters = new List<string>();
             if (timezoneOffset != null)
             {
diff --git a/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/PredictionExtensions.cs b/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/PredictionExtensions.cs
index c87e31afedd01..352df29296033 100644
--- a/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/PredictionExtensions.cs
+++ b/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/PredictionExtensions.cs
@@ -45,7 +45,7 @@ public static partial class PredictionExtensions
             /// Enable spell checking.
             /// </param>
             /// <param name='bingSpellCheckSubscriptionKey'>
-            /// The subscription key to use when enabling bing spell check
+            /// The subscription key to use when enabling Bing spell check
             /// </param>
             /// <param name='log'>
             /// Log query (default is true)
@@ -53,7 +53,7 @@ public static partial class PredictionExtensions
             /// <param name='cancellationToken'>
             /// The cancellation token.
             /// </param>
-            public static async Task<LuisResult> ResolveAsync(this IPrediction operations, string appId, string query, double? timezoneOffset = default(double?), bool? verbose = default(bool?), bool? staging = default(bool?), bool? spellCheck = default(bool?), string bingSpellCheckSubscriptionKey = default(string), bool? log = default(bool?), CancellationToken cancellationToken = default(CancellationToken))
+            public static async Task<LuisResult> ResolveAsync(this IPrediction operations, System.Guid appId, string query, double? timezoneOffset = default(double?), bool? verbose = default(bool?), bool? staging = default(bool?), bool? spellCheck = default(bool?), string bingSpellCheckSubscriptionKey = default(string), bool? log = default(bool?), CancellationToken cancellationToken = default(CancellationToken))
             {
                 using (var _result = await operations.ResolveWithHttpMessagesAsync(appId, query, timezoneOffset, verbose, staging, spellCheck, bingSpellCheckSubscriptionKey, log, null, cancellationToken).ConfigureAwait(false))
                 {
diff --git a/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/SdkInfo_LUISRuntimeClient.cs b/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/SdkInfo_LUISRuntimeClient.cs
index 968c56dccd287..53b934b8c4433 100644
--- a/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/SdkInfo_LUISRuntimeClient.cs
+++ b/src/SDKs/CognitiveServices/dataPlane/Language/LUIS/Runtime/Generated/SdkInfo_LUISRuntimeClient.cs
@@ -23,16 +23,5 @@ public static IEnumerable<Tuple<string, string, string>> ApiInfo_LUISRuntimeClie
               }.AsEnumerable();
           }
       }
-      // BEGIN: Code Generation Metadata Section
-      public static readonly String AutoRestVersion = "latest";
-      public static readonly String AutoRestBootStrapperVersion = "autorest@2.0.4283";
-      public static readonly String AutoRestCmdExecuted = "cmd.exe /c autorest.cmd https://github.com/Azure/azure-rest-api-specs/blob/master/specification/cognitiveservices/data-plane/LUIS/Runtime/readme.md --csharp --version=latest --reflect-api-versions --csharp-sdks-folder=C:\\Work\\azure-sdk-for-net-fork\\src\\SDKs";
-      public static readonly String GithubForkName = "Azure";
-      public static readonly String GithubBranchName = "master";
-      public static readonly String GithubCommidId = "9da47072c2a912065239412c13125e3242d7a8f7";
-      public static readonly String CodeGenerationErrors = "";
-      public static readonly String GithubRepoName = "azure-rest-api-specs";
-      // END: Code Generation Metadata Section
   }
 }
-