I need AFL CODE for -Stochastic oscilator

Algos, strategies, code
1

Auto buy sell signal i need AFL CODE FOR Stochastic oscillator and RSI, Bollinger band, seperately

2

Check the below given amibroker AFL code for stochastic oscilator

prd=Param("Periods", 20, 1, 100 );
Lmin=Param("Min",7,1,100);
Lmax=Param("Max",28,Lmin,100);

V1=StDev(C,prd);
V2=HHV(V1,prd);
V3=LLV(V1,prd);

V4=(V1-V3)/(V2-V3);

CurLen=int(Lmin+(Lmax-Lmin)*(1-V4));

Hh=HHV(H,CurLen);
Ll=LLV(L,CurLen);
stoch=(C-Ll)/(Hh-Ll)*100;

Plot( stoch, _DEFAULT_NAME(), ParamColor("Color", ColorCycle ) );
Plot( 80, "Overbought", colorBlue, styleDashed|styleNoLabel|styleNoTitle );
Plot( 20, "Oversold", colorBlue, styleDashed|styleNoLabel|styleNoTitle );