public class ErrorAwareStringToIntStep : ErrorAwarePipelineStep<string, int, Exception>
    {
        public override Either<int, Exception> ProcessSuccessInput(Either<string, Exception> input)
        {
            int value;
            if (int.TryParse(input.SuccessValue, out value))
            {
                return value;
            }
            else
            {
                return new Exception("Can't parse string to integer");
            }
        }
    }

    public class ErrorAwareMultiplyStep : ErrorAwarePipelineStep<int, float, Exception>
    {
        public override Either<float, Exception> ProcessSuccessInput(Either<int, Exception> input)
        {
            return input * 2.1f;
        }
    }

    public class ErrorStateChangeStep : ErrorAwarePipelineStep<float, float, Exception>
    {
        public override Either<float, Exception> ProcessSuccessInput(Either<float, Exception> input)
        {
            return input;
        }

        public override Either<float, Exception> ProcessErrorInput(Either<float, Exception> input)
        {
            return new Exception("This is a custom exception", input.FailureValue);
        }
    }
    
    public class ExampleErrorAwarePipeline : ErrorAwarePipeline<string, float, Exception>
    {
        public ExampleErrorAwarePipeline()
        {
            PipelineSteps = input => input
                .ErrorAwareStep(new ErrorAwareStringToIntStep())
                .ErrorAwareStep(new ErrorAwareMultiplyStep())
                .ErrorAwareStep(new ErrorStateChangeStep());
        }
    }