public interface IEvents
    {
        void OnEscrever(string text);
        void OnEnable(bool b);
        void OnDisable(bool b);
    }

public class Herda1 : IEvents
    {
        public void OnDisable(bool b)
        {
            throw new NotImplementedException();
        }

        public void OnEnable(bool b)
        {
            throw new NotImplementedException();
        }

        public void OnEscrever(string text)
        {
            throw new NotImplementedException();
        }
    }

public class Herda2 : IEvents
    {
        public void OnDisable(bool b)
        {
            throw new NotImplementedException();
        }

        public void OnEnable(bool b)
        {
            throw new NotImplementedException();
        }

        public void OnEscrever(string text)
        {
            throw new NotImplementedException();
        }
    }