Добавление IDisposable

Example.Backend/LoadTestImp.cs

@@ -31,7 +31,21 @@ namespace Example.Backend
 
         public async Task AsyncTest(CancellationToken token)
         {
-            await Task.Delay(TimeSpan.FromSeconds(5), token);
+            Console.WriteLine("Async Test");
+
+            for (int i = 0; i < 10; i++)
+            {
+                if (token.IsCancellationRequested)
+                {
+                    Console.WriteLine("Waiting canceled");
+                    return;
+                }
+                Console.WriteLine("Waiting...");
+                await Task.Delay(1000);
+            }
+            
+
+            Console.WriteLine("Waited until the end");
         }
     }
 }

Example.Backend/Printer.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Threading;
 using System.Threading.Tasks;
 using Example.Shared;
@@ -18,5 +19,10 @@ namespace Example.Backend
             // throw new Exception("The method or operation is not implemented.");
             return new Page {Text = text};
         }
+
+        public void Dispose()
+        {
+            Console.WriteLine("Dispose printer with name {0}", Name);
+        }
     }
 }