Refactor client classes

Hcs.Client/Client/Api/Request/Nsi/ExportDataProviderNsiItemRequest.cs

@@ -0,0 +1,31 @@
+using Hcs.Client.Internal;
+using Hcs.Service.Async.Nsi;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Hcs.Client.Api.Request.Nsi
+{
+    internal class ExportDataProviderNsiItemRequest(ClientBase client) : NsiRequestBase(client)
+    {
+        internal async Task<IEnumerable<NsiItemType>> ExecuteAsync(exportDataProviderNsiItemRequestRegistryNumber registryNumber, CancellationToken token)
+        {
+            // http://open-gkh.ru/Nsi/exportDataProviderNsiItemRequest.html
+            var request = new exportDataProviderNsiItemRequest
+            {
+                Id = Constants.SIGNED_XML_ELEMENT_ID,
+                version = "10.0.1.2",
+                RegistryNumber = registryNumber,
+            };
+
+            var stateResult = await SendAndWaitResultAsync(request, async(portClient) =>
+            {
+                var response = await portClient.exportDataProviderNsiItemAsync(CreateRequestHeader(), request);
+                return response.AckRequest.Ack;
+            }, token);
+
+            return stateResult.Items.OfType<NsiItemType>();
+        }
+    }
+}