начало реализации исключений

Example.Backend/Printer.cs

@@ -14,6 +14,7 @@ public class Printer : IPrinter
 
     public async Task<TransmittedSharedObject<IPage>> Print(string text, CancellationToken cancellationToken = default)
     {
+        throw new Exception("The method or operation is not implemented.");
         return new Page {Text = text};
     }
 }