Introduction

public class SimpleMovingAverage : Indicator
{
    public static IndicatorDescriptionBase Register() =>
        new IndicatorDescriptionBase { Name = "Example - Simple Moving Average" };

    public int Length { get; set; } = 20;

    [AverageSeries]
    public ChartSeriesDefinition Average { get; private set; }

    public override void OnSet(bool setDefault, bool themeOverride)
    {
        OnOpenCall = OnCloseCall = CallHandler.HistRT;
    }
    // OnOpen, OnClose ...
}