using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        SomeService service = new SomeService();

        service.Test(new SomeClass());

    }

}

​

​

​

public interface AbstractServiceInterface<T> where T : BaseClass

{

    void Test(T baseClass);

}

​

public interface SomeServiceInterface

{

    void Test(SomeClass someCLass);

}

​

​

public abstract class BaseClass

{

}

​

public class SomeClass : BaseClass

{

​

}

​

public abstract class SomeAbstractService<T> : AbstractServiceInterface<T> where T : BaseClass

{

    public virtual void Test(T baseClass)

    {

    }

}

​

public class SomeService : SomeAbstractService<SomeClass>, SomeServiceInterface

{

    public new void Test(SomeClass someClass)

    {

    }

}