fix: correct usage of Pod list items in client example and update Obsolete attribute formatting

Author: lqlive

examples/clientset/Program.cs

@@ -1,4 +1,4 @@
-using k8s;
+using k8s;
 using k8s.ClientSets;
 using System.Threading.Tasks;
 
@@ -13,7 +13,7 @@ private static async Task Main(string[] args)
 
             var clientSet = new ClientSet(client);
             var list = await clientSet.CoreV1.Pod.ListAsync("default").ConfigureAwait(false);
-            foreach (var item in list)
+            foreach (var item in list.Items)
             {
                 System.Console.WriteLine(item.Metadata.Name);
             }

src/LibKubernetesGenerator/templates/IOperations.cs.template

@@ -26,8 +26,8 @@ public partial interface I{{name}}Operations
     /// A <see cref="CancellationToken"/> which can be used to cancel the asynchronous operation.
     /// </param>
     {{if IfParamContains api.operation "watch"}}  
-    [Obsolete("This method will be deprecated in future versions. Please use the Watch method instead.", false)] 
-    {{end}}
+    [Obsolete("This method will be deprecated in future versions. Please use the Watch method instead.")] 
+    {{ end }}
     Task<HttpOperationResponse{{GetReturnType api.operation "<>"}}> {{GetOperationId api.operation "WithHttpMessagesAsync"}}(
 {{ for parameter in api.operation.parameters}}
         {{GetDotNetTypeOpenApiParameter parameter}} {{GetDotNetNameOpenApiParameter parameter "true"}},