Добавление IDisposable

Example.Shared/IPrinter.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Threading;
 using System.Threading.Tasks;
 using mROA.Implementation;
@@ -6,7 +7,7 @@ using mROA.Implementation.Attributes;
 namespace Example.Shared
 {
     [SharedObjectInterface]
-    public interface IPrinter
+    public interface IPrinter : IDisposable
     {
         string GetName();
         Task<SharedObject<IPage>> Print(string text, CancellationToken cancellationToken);