- return iDriver

Lib.Driver/DriverLoader.cs

@@ -12,12 +12,12 @@ namespace Lib.Driver
 {
     public class DriverLoader : IDriverLoader
     {
-        public XmlDriver Load(string driverPath)
+        public IDriver? Load(string driverPath)
         {
             XmlReader xmlReader = XmlReader.Create(File.OpenRead(driverPath));
             XmlSerializer xmlSerializer = new(typeof(XmlDriver));
 
-            return (XmlDriver) xmlSerializer.Deserialize(xmlReader);
+            return (XmlDriver?) xmlSerializer.Deserialize(xmlReader);
         }
     }
 }

Lib.Driver/Interfaces/IDriverLoader.cs

@@ -8,6 +8,6 @@ namespace Lib.Driver.Interfaces
 {
     public interface IDriverLoader
     {
-        XmlDriver Load(string driverPath);
+        IDriver? Load(string driverPath);
     }
 }