Add up arrow to this RSI condition

I'm trying to make it so this arrow only shows when the rsi is over sold.

Code:
def IsUp = close > open;
def IsDown = close < open;
def IsDoji = IsDoji();
def avgRange = 0.05 * Average(high - low, 20);
plot PatternPlot =
    IsDown[1] and
    IsUp[0] and
    close[1] == open[0];

PatternPlot.SetPaintingStrategy(PaintingStrategy.BOOLEAN_ARROW_UP);
PatternPlot.SetDefaultColor(GetColor(0));


#
# TD Ameritrade IP Company, Inc. (c) 2007-2021
#

declare lower;

input length = 14;
input over_Bought = 70;
input over_Sold = 40;
input price = close;
input averageType = AverageType.WILDERS;
input showBreakoutSignals = no;

def NetChgAvg = MovingAverage(averageType, price - price[1], length);
def TotChgAvg = MovingAverage(averageType, AbsValue(price - price[1]), length);
def ChgRatio = if TotChgAvg != 0 then NetChgAvg / TotChgAvg else 0;

plot RSI = 50 * (ChgRatio + 1);
plot OverSold = over_Sold;
plot OverBought = over_Bought;
plot UpSignal = if RSI crosses above OverSold then OverSold else Double.NaN;
plot DownSignal = if RSI crosses below OverBought then OverBought else Double.NaN;

UpSignal.SetHiding(!showBreakoutSignals);
DownSignal.SetHiding(!showBreakoutSignals);

RSI.DefineColor("OverBought", GetColor(5));
RSI.DefineColor("Normal", GetColor(7));
RSI.DefineColor("OverSold", GetColor(1));
RSI.AssignValueColor(if RSI > over_Bought then RSI.color("OverBought") else if RSI < over_Sold then RSI.color("OverSold") else RSI.color("Normal"));
OverSold.SetDefaultColor(GetColor(8));
OverBought.SetDefaultColor(GetColor(8));
UpSignal.SetDefaultColor(Color.UPTICK);
UpSignal.SetPaintingStrategy(PaintingStrategy.ARROW_UP);
DownSignal.SetDefaultColor(Color.DOWNTICK);
DownSignal.SetPaintingStrategy(PaintingStrategy.ARROW_DOWN);
 
@joshua74133 Try:

Ruby:
plot UpSignal = if RSI crosses above OverSold then 1 else Double.NaN;
plot DownSignal = if RSI crosses below OverBought then 1 else Double.NaN;

Then prepend ARROW_UP and ARROW_DOWN with BOOLEAN_...
 

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