sync up latest autorest generated code

Author: JoyerJin

src/OperationalInsights/OperationalInsights.Management.Sdk/Generated/OperationalInsightsManagementClient.cs

@@ -339,6 +339,9 @@ public OperationalInsightsManagementClient(System.Uri baseUri, Microsoft.Rest.Se
         /// <param name='rootHandler'>
         /// Optional. The http client handler used to handle http transport.
         /// </param>
+        /// <param name='handlers'>
+        /// Optional. The delegating handlers to add to the http client pipeline.
+        /// </param>
         /// <exception cref="System.ArgumentNullException">
         /// Thrown when a required parameter is null
         /// </exception>