Как то худо-бедно начинает работать лучше

Example.Backend/Printer.cs

@@ -10,7 +10,7 @@ namespace Example.Backend
     {
         public string Name;
 
-        public decimal Resource { get; set; }
+        public double Resource { get; set; } = 100d;
 
         public string GetName()
         {
@@ -22,6 +22,7 @@ namespace Example.Backend
             // throw new Exception("The method or operation is not implemented.");
             var page = new Page { Text = text };
             OnPrint?.Invoke(page);
+            Resource /= 1.5;
             return page;
         }
 

Example.Frontend/ClientBasedPrinter.cs

@@ -8,7 +8,7 @@ namespace Example.Frontend
 {
     public class ClientBasedPrinter : IPrinter
     {
-        public decimal Resource { get; set; }
+        public double Resource { get; set; }
 
         public string GetName()
         {

Example.Frontend/Program.cs

@@ -75,6 +75,12 @@ class Program
             var page = disposingPrinter.Print("Test Page", false, CancellationToken.None).GetAwaiter().GetResult();
             Console.WriteLine("Page printed");
             Console.WriteLine(page.ToString());
+
+            Console.WriteLine($"Printer resource : {disposingPrinter.Resource}");
+            Console.WriteLine("Restoring resource");
+            disposingPrinter.Resource = 100;
+            Console.WriteLine($"Printer resource again : {disposingPrinter.Resource}");
+
             var data = page.GetData();
             Console.WriteLine("Data : {0}", Encoding.UTF8.GetString(data));
 

Example.Shared/IPrinter.cs

@@ -9,7 +9,7 @@ namespace Example.Shared
     [SharedObjectInterface]
     public interface IPrinter : IDisposable, IShared
     {
-        decimal Resource { get; set; }
+        double Resource { get; set; }
         string GetName();
         Task<IPage> Print(string text, bool someParameter, CancellationToken cancellationToken);
         event Action<IPage> OnPrint;

mROA.Cbor/CborSerializationToolkit.cs

@@ -62,7 +62,7 @@ namespace mROA.Cbor
 
             if (nonCasted is PreParsedValue preParsed)
                 return preParsed.ToObject(type, context);
-            return null;
+            return Convert.ChangeType(nonCasted, type);
         }
 
         private void WriteData(object? obj, CborWriter writer, IEndPointContext? context)
@@ -214,6 +214,9 @@ namespace mROA.Cbor
                     return reader.ReadDouble();
                 case CborReaderState.SinglePrecisionFloat:
                     return reader.ReadSingle();
+                case CborReaderState.HalfPrecisionFloat:
+                    return type == typeof(float) ? reader.ReadSingle() : reader.ReadDouble();
+
                 case CborReaderState.StartArray:
                     if (type == null)
                         return ReadList(reader, null, context);
@@ -308,7 +311,6 @@ namespace mROA.Cbor
 
             if (type.IsInterface)
             {
-
                 var sharedShell = typeof(SharedObjectShellShell<>).MakeGenericType(type);
                 var so =
                     Activator.CreateInstance(sharedShell) as

mROA.Codegen/mROASourceGenerator.cs

@@ -436,6 +436,7 @@ namespace mROA.Codegen
 {level}{{
 {level}    IsVoid = false,
 {level}    ReturnType = typeof({method.ReturnType.ToDisplayString()}),
+{level}    ParameterTypes = new Type[] {{ typeof({method.Parameters.First().Type.ToDisplayString()}) }},
 {level}    SuitableType = typeof({method.ContainingType.ToDisplayString()}),
 {level}    Invoking = (i, parameters, _) => (i as {method.ContainingType.ToDisplayString()}).{(method.AssociatedSymbol as IPropertySymbol)!.Name} = {Caster((method.AssociatedSymbol as IPropertySymbol)!.Type, "parameters[0]")},
 {level}}}";