public void NextValue()
        {
            var source = new DecimalSource();

            for (int i = 0; i < 10; i++)
            {
                var nextValue = source.NextValue(null);
                _output.WriteLine($"Value {i}: {nextValue}");
            }
        }
        public void NextValue()
        {
            var source = new DecimalSource();

            for (int i = 0; i < 10; i++)
            {
                var nextValue = source.NextValue(null);
                _output.WriteLine($"Value {i}: {nextValue}");
            }

        }