using System;

using DryIoc;

public class Program

{

    public static void Main()

    {

        var container = new Container();

        container.RegisterInstance("some_connection_string", serviceKey: "connectionString");

        container.Register(typeof(Configuration<>), Reuse.Singleton);

        container.Register(typeof (IEntityUpdater<>), typeof (SqlEntityUpdater<>), Reuse.Singleton);

        var p = container.Resolve<IEntityUpdater<EventArgs>>();

        Console.WriteLine(p);

    }   

}

​

public class Configuration<T> where T : class { }

​

internal interface IEntityUpdater<in T> where T : class

{

    void Update(T entity);

}

​

internal class SqlEntityUpdater<T> : IEntityUpdater<T> where T : class

{

    public SqlEntityUpdater(Configuration<T> configuration, string connectionString)

    {

    }

    public void Update(T entity) { }

}